ok iv been doing alot of reading on here and hunterworks website. im so confused. if i knew what get machined. what od weights do. and what a secondary spring does. i would be able to make a better decision on i need. could someone please school me. i tore into my clutch last weekend so i have a good idea as to how it works just not sure how these different things effects performance. what im looking for is more top end and still a good strong low end. would love to spin the tires lol. i come from a built banshee so this thing feels sluggish lol. i ride with rangers/ razors and teryx. im the slowest. i know i im not gunna be passing anyone but would love to be able to keep up a little better. 07, 660 new yamaha belt 100% stock motor. 26" mud lites. what i thought i needed was a msd and a sheave. so i was tore between HW's and jbs sheave. but after reading hunterworks site he says OD weights gets the same top end as a machined sheave with no roller flop.tell me what i need please.