Yep, out of collimation wont help
. I'm not sure if its focus, could be... If you're imaging native (i.e no focal reducers in the imaging train), then the 14" @ F/10 has a CFZ of 220 microns. This is a rather slow/long, so would be difficult to miss focus. If you use a 6.3 reducer it changes to 83 microns. My current scope is 55 microns and I wouldn't trust myself manually focusing as the CFZ is too fast/short. Its best left to a form of motorisation.
Look forward to seeing more of your images.
