I am a GS Racer. I'm 5'11" and around 140 lbs. My current ski is an Atomic GS:9 176cm. I'm able to get a deal on a pair of brand new GS:11 Race Stock 190cm. My question is, will 190 be too long for me? I can feel on my current skis a lack of stability, the ski just chattering and sometimes getting out of control at high speeds. I'm not the best racer but I'm good enough where something like a speed suit can really make a difference. I don't have the ability to test out a pair of 190's for some time, and by then the deal will be void. Any suggestions or comments would be greatly appreciated.