Very true
For what it's worth I've already placed an order this morning for a Ronchi test eyepiece following a link provided by Asimov in another thread.
http://schmidling.com/ez-testr.htm
Thanks for that John.
I'll now be on another learning curve, discovering how to interpret these various test images.
From what I can tell there are really only a very small number of results/test images which are signs your scope is in serious trouble. The rest reveal small degrees of misfiguring which are nothing to get too worked up about?
More gear in the astro kit!!!!