As one of the few softbooters here and coming from the Pacific Northwest late in 80's to early 90's, cutting tips and tails was common practice. We could cut down Burtons and Libs all the time. Libs were easy as there wasn't much meat on the tip and tail to speak of. It was all plastic as most cores stopped just before the end of the camber. Burtons, you had to remove edge material and sometimes came into contact with the wood core. Heat was always the enemy so using a cutting wheel/grinder was usually only used at the very end to fix the imperfections and round things off evenly. Many Libs became Directional freerides as we would lop off the tails on blem boards. OG slalom boards with 3 strap megaflex and Kemper bindings. skill saw with a fresh blade works well for quick cuts and a sharp jig saw works well too. Lots of epoxy after. Can only speak for old decks though. I say go for it!