I love my SkyWatcher SkyMax 180. Beaut. It's also a BEAST! Holds collimation really well, and while there is a slight shift in collimation from one side of the meridian to the other, it's not too bad. I did an artificial star test, with the scope horizontal, and then turned the ...
I own the Skywatcher 180mm Mak. It is a very good planetary scope. It's pretty good on deepsky objects. It might keep up with your 10" Starfinder on planets (or beat it), but it will fall behind on deepsky. Use a decent 2" diagonal with it, and you will find it easy...
The range of perspectives is interesting. To me, the skywatcher 180mak is light and compact at 19lbs with accessories - especially compared to my 5" refractors and C11 (or, for that matter, my mount heads) I'm a big skywatcher 180 mak fan. Planetary views are right there with my much...