Replying to Stiff boots vs soft in the park / full tilt flex

6’2 170lbs
I have ft dropkicks with a 10 tongue and booster strap currently, flex feels good.

Tried on Salomon pro 120s and the flex/fit felt heavenly.

Is shinbang on stiff boots / full tilts preventing it a myth?
why wouldn’t you want a stiffer more responsive boot in the park?

Also curious about flex equivalents on fts, because the 10 does not seem to be a 130 (like most people state) because the Salomon 120s felt stiffer.