Yah... 2 mentions of my problems...

Secondaries get overlooked because they're smaller and they're flat, so it looks like no big deal, but when they're off, they can ruin all the good work your primary has done.

I've been very happy with my Protostar secondary. If you start off with a bad one and your experience is not great, it can be very frustrating trying to hunt down what your problem is. If you figure it out and replace it with yet another inexpensive one because you're pinching pennies and THAT one is astigmatic as well... THAT is maddening and throws your sleuthing confidence way off!

Buy a good one and forget about it. - j