[Dafni]

They may be light, but pretty useless on any surface I have ever tried. Something in the rubber compound they use.

35K rpm or less is fine for most new high-end motors.

Mikes 808 mount wont work on the XT8 or XB8. IIRC they are a bit taller than the old one. (The XB8 mount will work on an 808 with some spacers, but not the other way around) I guess that's why he did it when the 808 appeared, could have used the old one otherwise.