I'm going to a softer rear spring and am wondering if going from a 5.4 to a 5.2 is really much of a jump. I have a 426F with a stock 5.4 in the rear. I weigh 165 without gear. The spring rate calculator I used (MX Tech) said 5.14 for motocross. Any suggestions? Will I feel much with a .2 change? Should I go to 5.0 instead of 5.2? Any help would be appreciated.