I am thinking of adding a heavier flywheel to my 450 to smooth the power out. Yes I know it is smooth already but I wanted to fine tune it for myself. If I add a few ounces, how will that affect my starts in Motocross? Will it also allow me to go though turns in a higher gear? I am just looking for the pro and cons of doing this? My bike is essentially a stock 04 450R.