Does it run smoother than the original motor?
Might have to call this the "Better Birney Bureau"
Hee! Yeah, actually, it does, though I think part of that can be attributed to a cracked gear in the original gearbox that I found while cleaning it off with mineral spirits... which might explain why the DC 65 was throwing parts; vibration-induced failure!
We'll just have to see how things shake out, longterm...