Glad to help! The pros on this site have been so helpful and good to me, I'm happy to pay it forward. After all, it only cost a drop of loc-tite, haha!
I always smash a sliver of paper between the pinion and gear before tightening motor screws. If it's too loose or tight after spinning it out, you can double it up (fold) or just find different gauges of pages. My go-to is a standard junk mail envelope. Good thickness for this size pinion.