I'm submiting this because of the in depth, quality comments/explanations I've read on this forum from knowlegeable skiers of proven ability. I'm 62, 6'-2", 200#, ski in MI, 32 mph @ -15 (w/PP). For 3 years I'd been riding a 2003 68" CR7. While in FL, Oct. '06, I tried a new 67 1/2" D3X5. Ran 3 sets with it, felt good so I bought it. It felt quicker than the CR, felt it would help me. During this past season I experienced no apparent gain, maybe lost a little. Had big dreams of running 34 mph into -22. This past Oct. 8th I had a brainfart, put my boots back on the CR, ran one set and improved slightly! At a fast 32 mph I immediately noticed better angle out of both sides and smoother, easier complete passes. It felt easy to ski correctly. Questions: (1) Is the 67 1/2" X5 too small for my weight, boat speed, line length? (2) If it's too small, what deficiencies might I (should I) have noticed/felt/experienced? (3) Might I have a better opportunity to experience improvement on a 68 1/2" X5 ? I'd gladly sell the 67 and buy a 68 if my chance of success could improve. Any thought provoking comments would be appreciated. Thanks in advance!