First off, your comparing apples with banana's, a roller secondary isnt ever going to be the same as just a faster shifting helix(53/43). The roller seondary is just that... a roller, uses rollers where the contacts are on the helix, so theres 10 times less friction drag there and they increase the shift speed because of this and increase the backshift speed as well, this is why you have to run smaller helix angles with a roller secondary then a stock yamaha button clutch. you also will need more seocondary spring pressure to control the shift in a roller then a button, in fact they are so sensative many guys complain about loss of topend with them as they will backshift at the slightest loss of torq. transmitted from the engine.
The secondary clutch is a torq. sensative device, meaning if your flying along at 80mph and your motor doesnt have any more power left, your secondary will begin to backshift and drop the belt back into a differnt ratio(higher in secondary and lower in primary) to best transmit the power to the track. this is what happens with the loss of topend some people find with a roller secondary, it can be tuned out and made to work well. The only problem many find with roller secondary's are when you grass drag race, they shift so fast its very hard to hang onto the belt, they simply overshift too easy, and by using a stiffer secondary spring this takes away topend speed. A snowmobile will go the fastest mph in a given distance with the least amount of rear secondary clutch spring press.You just have to find the magic tension to control the shift but not overpower it and make the rear clutch fight the front clutch by trying to backshift.
The 53/43 helix and green secondary spring is a cheap clutch kit that works very well, its just that a cheap clutch kit. Improves the holeshot by shifting the sled up faster and backshift better as well from the lower finish angle, all around better then the stock 47. You may over rev slightly on top and need to add some tip weight, which is a good thing, it helps you to hang onto the belt better at topend.
As far as heel clickers go, you would never be able to use the 53/43 helix with them, it would be like starting out in a stick shift car in 3rd gear all the time. If you want to read aboutheel clcickers and how to make them work, look in the tech articles and read, i posted a couple things in there on them.
