I just read the excellent writeup by KVO-TN1-tobeat on how to degree hotcams using the hotcams degree kit http://www.thumpertalk.com/forum/showthread.php?t=470426 It was mentioned later in the thread that You can also play with advanement and retardation. Advancing or retarding a cam, consists of moving the lobe center forward or backward in it's timing in relation to the piston position. Doing this is a way to taylor the motors performance to a persons specific riding style or for specific riding conditions. Say that you wantd to have more bottom end for heavy woods riding. You wold be needing to stick a gear and open up the throttle at a verry low RPM, so obviously you would want more power down low and it would be a waste to have your cams degreed for top end performance. You would retard the intake a few degrees and advance the exhaust slightly. This would widen the powerband but give you less performance up top. Here is what the Muzzy article says about it, "Very generally speaking, the effect of moving lobe centers is as follows: Advancing the intake and retarding the exhaust (“closing up the centers”) increases overlap and should move the power up in the RPM range, usually at the sacrifice of bottom end power. The result would be lower numerical values on both intake and exhaust lobe centers. Retarding the intake and advancing the exhaust (“spreading the centers”) decreases overlap and should result in a wider power band at the sacrifice of some top end power. This condition would be indicated by higher numerical values on both intake and exhaust lobe centers. By moving only one cam the results are less predictable, but usually it is the intake that is moved to change power characteristics since small changes here seem to have a greater effect. With twin cam engines we have the luxury of moving the cams independently." Have any forum members degreed their hotcams outside of the hotcams factory specs, to suit a particular application ? If so, where did you get your custom specs from ? Alternatively, is it better for most of us to stick with hotcams factory specs when degreeing the cams, regardless of application ?