I have about 8000klms on my 2000 MXZ700(spring order with DPM)t the back shock/s are getting weak. It bottoms alot easier than it ever did and the ride seems worse than it was. What is the best option? redo the ones I have, or replace? I DON'T want to hurt the ride, I want more control in big bumps/jumps. And I assume its the back shock that has more control on this?