I ran a mini spool for a while years ago when I started running No Electronics foot brake. Then one night after running four 7.10's in a row the cross pin sheared at the launch of the fifth pass and cost me what I'm sure would have been an event win. Definately want a to use a full spool and at least a 31 spline Moser or MW axle. Many people like them but I don't recommend Strange as I twisted 2 sets of them. So if you can, go ahead and get the 35 spline stuff.