Goodmorning. I was wondering if my grab and wobble mount is to lightweight for my scope. My only mount for doing some visual enjoyment is a Vixen porta from the first generation. I use it a lot during a week. Fold it in, walk outside, fold it out and ready to do some observing in 30 seconds. With an 80mm all works great. With a 100 mm (and quite longer tube, 900 mm) focusing is a terrible job. Focus, wait for the wobble to stop, slew to the object that’s already out of view when the wobbling stopped, focus again a bit more etc.
Is this caused by the mount or the length of the tube? I realize both are influencing the aftershocks from focusing. But is possible to get a solid grab and go mount that doesn't have this problem? I see a lot of mouthwatering setups with huge refractors. Do they all suffer from a period of movement after focusing for example?