Yes, that's true. I don't really feel like being a test bunny.
No matter which way I go, I can see a follow on purchase will (probably) be better filters.
Also I've been considering:
* Abandon the "clean" full frame requirement and target smaller camera sizes for this scope setup.
* Find something like the Sharpstar 107PH with functional flattener and reducer, e.g. perhaps SVX102T with its SFFR.74 Focal Reducer? Or this:
https://www.apm-telescopes.de/en/tel...cnc-lw-ii.html 