I have a 98 banshee frame stuffed with a 07 cbr600rr engine. +4 swing. I am having issues with the fuel tank which is under the seat making contact with the sprocket in the rear. I started with a Eibach 750lb spring upgrade in the rear and adjusted the compression all the way firm. But the stock shock would bottom out under anything more than half throttle. that is sucking the tail down about 7 inches to make contact. I was thinking about trying marvin Shaws under the back, but ran across a deal on a works rear shock(remote res) shock. Said it was set up for +6 and 180 rider. I weigh 190 and have the +4. Thoughts? Suggestions? Think it might work? Don't get it till next week.