A question on the results of adjusting the spool end play/centering on Abu conventionals with dual knobbies and part #23500 speed bushing on the inside of the left side plate. This would be the brass bushing with the collar about midpoint on itself. When fully inserted, this collar "rests" on the rim of the cavity inside the left end plate. For this discussion, let's presume the manufacturing tolerances inside the reel are ok, and that the customary and usual spool centering/adjustment has been done so that the spool is resting where we want it. With the spool in this position, does anyone know if it's appropriate for the speed bushing collar to be absolutely flush with the rim, or somewhat away from it?