So I am going to either get The ARV 96 or 86 for my next ski. I currently am using the line TW shorty and it is super light, but the 149 is too small for me. I am 5 2 and 100 lbs, and can do 7's, 2's out of rails, learning to swap and need a durable ski. Should I take the jump from a 75 mm...