Peering down the QAG tube for the 120MM camera, I can see the light incoming from my 12” Mead LX 850 SCT, but when I insert the camera I rarely get any distinct stars to guide on the asi pro. As a result, I’ve relied most on my mount. But I would like to get the pro driving based on the guide camera for the OAG. Is it my backfocus or some other issue?