Pretty good review. The TRS is never going to feel like a noodle. The skate banana is the noodle board. I would say don't go up to a 157 if you're 140lbs unless you're just in deep powder all day long.
The TRS BTX is the board I pull out for deeper powder days. It's a bit stiffer than my banana (what isn't).
I have a word limit on my cynicism