Originally Posted by roger 04 rt
Even with the extended hub, the input splines are still 4-6 mm short of passing through the clutch-web plane (holds the hub to the disc). Even with full engagement, there will still be an angular force on the hub if the crankshaft and input shaft are offset from one another.
I don't know if this is or isn't an issue but it seems worth discussion.
That has been discussed before and it was a real concern to some.
I don't have the thread handy, sorry.