looking for apex clutching how 2 and advice.

hey guys , one thing i have overlooked over the years in improving my sled was clutching. for where ever i was riding i'd just use the little yamaha chart and slap in my spring and weights and left er at that. This year i really wanna get all the performance i can out of my yamaha and i would like anyones advice as i want to learn i can about clutching for better performance.

My apex is N/A but with close to 100lbs of weight shaved off the sled, i would like to go to a 19t top gear and my sled has a 162x16x2.5 camo extreme. My plan is to buy some adjustable weights but where do i start? what primary spring do i need to lookin into? and what about the secondary? what would a shockwave helix help me with?

so many questions so any help, hints, tips and advice greatly appreciated

thanks
spenser

thanks, so far i had supertips and shockwave in mind. i see u can get a supertips x version that provides harder, firmer shifts. i assume this would be beneficial to mtn riding?