I've been "struggling" with two questions on setting up roller-skis and would appreciate any input:

- On bindings, consensus seems to be to mount as close to rear wheel as possible (at least for classical skiing). I've got Salomon bindings and wondered about cutting off the plastic on the rear / sides of the binding--this gives me a few more centimeters to play with (cause rear plate of binding can fit between fork mounts). Just wondered if anyone has tips on cutting that plastic without cracking it....(if possible at all)

- On wheels, I'm wondering about combining two different wheel speeds on one classic rollerski (one advantage of Swenor's seems to be that wheels are very easy to change). If I'm combining a "Slow" and "Very Slow" wheel, should I buy a "Very Slow" for front or (ratched) rear?

As always, any comments appreciated...