if there a recess in the hosel,like the one you mention, it means that a collared ferrule is the preferred type .
The collar's intent is to act as a soft shoulder in an area that's been a source of shaft fracture in some assemblies.
If you don't have a collared ferrule, a ferrule with an large enough internal chamfer will retain the bead of epoxy that wells up around the shaft and thus in conjunction with the recess fills up to form a supporting collar of epoxy extending up inside the ferrule.
thanks bl8d...i'll check the .335 ferrules i have and see about that internal chamfer...those collared ferrules are a pain any way as they often are hard to seat all the way in without rising.