I'm really second guessing this now. I dropped off the original front sections to the mono's which are 1/2" longer and 1.5" arch. The extra front sections i have are 2" arch and look to be heavier duty. Which front sections do you guys think would be best to use at getting this 511 hooked up at the track? I could just drill the spring perch and use the shorter heavier spring real easy. Thanks