Also if your focuser is a little stiff it might need some of the baffle tube lube spreading about a bit... to do this, turn the focuser one direction all the way to the stop, then back the other way to the stop and repeat back and forth a dozen times. It takes a few minutes but I found it helped with the finer focussing attempts quite a bit, but I could still focus before it was just more tricky, so not sure if this helps
