Hi Scott,
Motorised focuser will surely help in achieveing good focus, in particular at F4.5.
Gaff, huh? LOL
There is nothing like tweaking and improvising with astro gear on cloudy days/nights
In my ongoing crusade to eliminate flex and madly tightening everything up I noticed I was squizzing light out my refractor, literally. Realised that I must have tightened tube rings too much when recently started getting funny looking star shapes in my astro images...So goodby guidescope and hello my old OAG
P.S. The scope can breathe again with loosened (normally tightened) tube rings.