Hi all, Im new to the forum. I bought a 2001 929 RRY fitted with a power commander and a Devil end can, which is slightly louder than standard. Its a straight though silencer. The power valve is in place in the front section. Other than the pipe and power commander its a standard bike with 7000miles on the clock. However it has a truely horrible flat spot at 4000 rpm. It will pull through it... just about. Ive tried loading a new map into the power commander but its made no difference. Does anyone have a solution, being tight I was trying to avoid the cost of taking it on to a rolling road and getting a dedicated map made for the power commander. Anyone help? Cheers Lee.