Board size question.

I'm about 6 feet tall and riding a 128. I'm about 140 pounds (Real skinny). Anyways Would a bigger board help im prove my riding (going bigger etc..)
Because im pretty sure a 128 is wayyy to small for me.

yeah it would definately help your riding
try and get something around the 138 range
it will widen your stance and get you lower so you can have more control. plus you will get alot more pop

at 6 foot tall, you could go much longer than a 138.

at your height I would look at trying to get a board with the widest stance range, because you're going to want to go that wider sooner or later.

Yeah its already set as wide as possible. Also on a snowboard my stance is 24" wide.

a gb militant 140 would be a good size range because it isn't to wide and you could still get a good nice wide stance

the watson 138 goes to 24.5 inches and the shane 140 goes 25 inches and the watson 142 goes to 25 inches as well

Riley, i know what your talking about. i too am real "lean" 6'3, 155. i ride a 138 which has done well for me. and i have also ridden a 140 which was also good.

wow thats crazy you were riding a 128. Anyways, bigger board and more surface area= more pop.
smaller board= spin quicker, but loosepop. You are 6ft tall but you only weigh 140. Im 5'8" and about 155 and i ride the LF shane 136. That size just feels perfect for me. Try a few sizes out but id have to say stick around the 136-141 range. The only real way to find out is to ride on different sizes and you decide what feels best.