Sure thing Scare, it reallly is simple. If you want that snappy clutch engagement just install them as is w/out the included setscrews. If you would like a slight delay or to be able to roll on the throttle without the snap then just add the weight needed for your desired result. It is a little trial and error on which weight and where, but just remember to use the locktite if you decide to use the weight. If you just plan on bashing though, I say just leave them off and run it as is without the weights. I use the largest weight on the middle hole to help with slowing the takeoff as I run a more intricate track with some large straights it helped out a little but there still more to be desired, or it could just be the driver. lol The quick engagement was too much for me in the turns, I may add one more. Good luck I'm sure you'll be as pleased as I was when I first started using them. Let us know.