I took the entire rear of the M900 apart.
I called Dave Moss at Catalyst Suspension, and rode down so he could dial in the bikes front forks, and rear shock. He made some measurements, and he dialed it in. Holy crap, the bike handles so much better now...it doesn't wallow on hard acceleration, and it tracks perfectly through corners under heavy acceleration. So I promptly rode home and got my other bike and came back to get that one dialed in. :D