I can attest to the weight sensitivity of the M-10. I've got the 136 version in my Vector and set the FRA up full soft for my wife. It bottomed a couple times for her. I rode it and it bottomed everywhere. I weigh about 50lbs more. I then rode the sled with my 70 lb daughter and it was unrideable in bumpy conditions. It would bottom and didn't want to spring back up right away.
This weekend I got so sick of the lack of transfer and the bottoming, even with the FRA set further ahead, I did the following. I removed the coupler blocks and trimmed them down 1/4". I put the center shock limiter strap at 4/4 and tightened the center shock preload. I set the FRA in the middle of the adjustment and finally, the sled will pull the skis when climbing in spring snow. It is also more resistant to bottoming, but I lost that cushy ride in the stutters. It still bottoms hard in g-outs and can't handle them. I also lost top speed because the approach angle is steeper with the front limiter being let out all the way.
The M-20 is supposed to work a lot better than the M-10. For cruising, a guy will probably be happy with it. For performance riding I think the M-10 sucks. I have a used Ski-doo 136 SC-4 that I'm going to install in my Vector. After two seasons of experience with my M-10, I'm not impressed with it's all around capabilities or performance. It just doesn't have a big enough window of performance to work well in all conditions without being adjusted. That to me is not an improvement. A standard, rising rate, scissors type skid works well everywhere and just isn't as temperamental.
This weekend I got so sick of the lack of transfer and the bottoming, even with the FRA set further ahead, I did the following. I removed the coupler blocks and trimmed them down 1/4". I put the center shock limiter strap at 4/4 and tightened the center shock preload. I set the FRA in the middle of the adjustment and finally, the sled will pull the skis when climbing in spring snow. It is also more resistant to bottoming, but I lost that cushy ride in the stutters. It still bottoms hard in g-outs and can't handle them. I also lost top speed because the approach angle is steeper with the front limiter being let out all the way.
The M-20 is supposed to work a lot better than the M-10. For cruising, a guy will probably be happy with it. For performance riding I think the M-10 sucks. I have a used Ski-doo 136 SC-4 that I'm going to install in my Vector. After two seasons of experience with my M-10, I'm not impressed with it's all around capabilities or performance. It just doesn't have a big enough window of performance to work well in all conditions without being adjusted. That to me is not an improvement. A standard, rising rate, scissors type skid works well everywhere and just isn't as temperamental.
