I recently bought a 2005 m6 w/141 track and it currently is set up for 6000-9000 ft and I believe it has 65 gram weights which matches the sticker on my sled. When I bought this sled the dealer told me they would send me ground level 0-3000 ft weights since I live in North Dakota. I got the weights and they are the 672 weights (75 gram) not the 671 weights (70 gram) weights like my sled calls for according to the sticker on next to the primary clutch. I called the dealer and told them they sent me the wrong size and I need 70 gram not 75 gram and they insisted my sled takes the 75 gram for ground level and that my sticker was wrong. I didn't believe them and called up another dealer and they also told me that sled takes 75 gram weights for ground level. My M7 uses 75 gram weights at ground level, wouldn't you think my M6 would have different weights than my M7 just as the sticker says? I have the yellow/white spring which is what the sticker calls for too and I think I have the standard helix aswell. What weights have people been using for the 0-3k altitude? My sticker calls out 70 gram for 0-3k, 68 gram for 3k-6k, 65 gram for 6k-9k and 63 gram for 9k+. Thanks in advance for your help.