SunSurfer

That would be Richard Knapp. He's come to a number of SES/ATC and taught a range of clinics from beginner through to advanced skills. I credit Richard's teaching with me making real progress in my riding during the 2015 session.

Nic(r-typo)e promo for Kessler. (?all 168s?)

You've watched/read the material Autodesk provides?

The secrets of sports recovery https://www.theguardian.com/sport/2019/apr/21/the-secrets-of-sports-recovery?

Causing an outburst of fat shaming wasn't my aim. Even lean cyclists know the cheapest way to lose total weight from bicycle and rider is to lose rider weight. Chris Froome is seriously LEAN. I deal with the consequences of Western calorie rich diets every day in my work as a doctor. For me, obesity is a health issue that robs, the person trapped inside, opportunity and length of life.

That's the carving equivalent of wearing Speedos away from the training/racing swim pool.

Just don't be physically concentrated with that!

Some of that is power to weight ratio, as well as optimising the rest of the design to take advantage of the P-to-W ratio. Where I come from the Harley Davidsons are mostly ridden by nutritionally accomplished people. Whereas Valentino Rossi and his machine are both a litttle leaner.

@1xsculler I had made some measurements through the sole of my UPZs that when I calculated the slope for the whole sole length came out at 6 degrees. I more recently came across an X-ray image of a foot in a UPZ boot and measured a heel to ball of foot zeppa angle of 11 degrees. I ride a 6 degree toe lift under my front UPZ RC10 and find this is both comfortable and allows me a relatively long stance distance (182cm tall, 56cm stance C-to-C). Unless I walk around barefoot, or wearing Birkenstock sandals, the majority of my footwear has a heel higher than the forefoot. Not sure that we need to be completely flat under the front foot, but I do need to compensate for my front foot being substantially in front (relative to my pelvis) of my rear foot with my roughly 60 degree stance angles.

https://doi.org/10.1139/p04-010 Or this article from the Canadian Journal of Physics. "The ideal carving equation and its applications." A key concept is that there is a maximum speed for any SCR where a carving turn can hold without skidding. The longer the SCR the higher the speed.

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Found a 4 video hard boot snowboarding intermediate to advanced skills instruction series, not sure if the speakers language is Japanese or Korean. The riders skill drill set is impressive, opened my eyes to quite a few things! The autotranslate captions setting on YouTube is kind of helpful in making the speakers intentions clearer. He has a range of other videos but they look like they're mostly aimed at softbooters. Anyone able to make accurate translations for these?

Absolutely. No one will ride with you!

Lots of instruction videos out there for softbooters wanting to carve in softboots, even extreme carve in softboots. I'm really after instruction videos for hardbooters.

Update on my immediately previous post. Found this xray image of a foot in a UPZ RC boot on the kimcarving blog site. A little work in Powerpoint shows an effective ramp/zeppa angle of 11 degrees. Looking at the xray that's the slope between the heel and the ball of the foot. Forward of the ball the boot sole flattens out. Thanks @daveo , followed up your hint below.

Korean carving blog link. https://m.blog.naver.com/PostList.nhn?blogId=kimcarving Lots of links/photos/videos to stuff I've struggled to find elsewhere. A treasure trove of stuff for off-season stoking.

The German riders are doing well in their races, but they're getting sloppy with the end caps on their FES plates. See detail closeup from Selena Joerg's board @ Secret Garden. Photo from the FIS SmugMug site.

Output from Fin's cut through boot project linked https://imgur.com/a/o6MDVW0 (9 images)

The data we lack is the internal volume of the different brands and shell sizes. Also the means to match the 3D foot model to the shell. Ideally other ski & snowboard boot manufacturers would licence the app just as Dodge has done.

@daveo Dodge Skiboots already use this app on their website to do exactly that.

@1xsculler That's the received wisdom, that riders are best to have a mondo size boot that matches their rounded down foot length in cm. Hence my "go figure" comment in my original post. What I've got gives me great heel hold down, and plenty of room for my forefoot to move as I modulate the pressure under the sole of my foot.

Nice shooting too. Sharp focus and pretty steady. Loved seeing the flexing tip of your Kessler, @polaris.

https://imgur.com/a/Ed4aOZh Happy in UPZ RC10 324mm shell (mondo 29-29.5) Link has the screenshots from my Android phone of the 3D models of my feet and the measurements screen. On phone screen the 3D models are 360 degree viewable. The sole view seemed to give the most information on foot shape for a single view. Took a couple more repeat measurements to see how reproducible the measurements were. Right foot was reproduced with +/- 3mm consistency. On the subsequent 2 runs through Left foot lost 20mm length and other measurements in proportion. Run 2 app noted Left foot reproduced "with problems", 3rd run no such message. Manually measuring Right foot length today, steel ruler end against skirting board & rear most protruberance of foot against skirting board, length = 283mm, ball width 111mm (little toe just touching skirting board, no sense of pressure) So appears to measure accurately most of the time. I suspect that its' value lies in showing relative foot shapes and volumes when someone says a particular boot shell suits their feet.

Found a free high tech solution to this problem. Available for Android & iOS. https://antropometria.ibv.org/en/3d-avatar-feet-en/ Just used the app to 3D model and measure my own feet. The limited use free app also gives measurements for foot length, ball width, ball girth and Instep girth. If I hadn't run out of attachment room I'd post my images and the fact that my UPZ RC10s shell fit this shape well. What intrigued me was that the app had my feet at 280mm +/- 1mm length. I've always found 28 mondo shells too small and found comfort only in 29 mondo. Go figure. Left Length: 279.0 (all in mm) Ball Girth: 275.6 Ball Width: 113.0 Instep Girth: 271.7 Right Length: 280.1 Ball Girth: 268.4 Ball Width: 112.0 Instep Girth: 267.5

Only royal (real) tennis.