ok just got my busa rear in the mail today. 9 dollars plus shipping, can't beat that. any how i see three adjustments on this shock, one next to the resevour, one at the bottom and one at the top of the spring, I weigh 300 pounds and ocasionally ride two up, so I want to make this shock as stiff as possible, so I asume I wind the spring all the way down and turn the flat head brass screws all the way in? now on the screw next to the resevour there is what appears to be a large plug with flat sides is that like a lock nutt kinda joby for that setting or can I leave that alone. ps I do like stiff shock so i want full pre-load, dampening and rebound.
Thanks