I think a bit more information might be helpful. Such as: your weight, riding style, aggressiveness and what you're trying to achieve. Are you let's say a Clydesdale rider using alot of body english to aggressively arc your turns? Or are you a lightweight with alot of finesse and a quiet upper body making turns?
Anyways, I don't think that you'll get many negative reviews on the Bomber BTS! Instead of being locked into a stiff position or having minimal support of riding in walk mode, you'll be able to find tune the ride that is right for you once you decide on what springs to go with and a bit of tinkering! We all love to tinker with our gear!
My example: I'm 150 pounds, am an advanced rider who is moderately aggressive with a somewhat smooth riding style. I have the SB323 with yellow(soft) springs all the way around. I may be tempted to try the blue(medium) springs for my heelside/backside turns, which right now is my stronger turns.
Booster straps, I've tried them, didn't change my riding/comfort that much. So I am currently not using them. Other people will have to chime in on the Booster Straps.
That's just my two cents. Good luck!