Brian, thanks so very much for the link. Fascinating reading, for sure.
I found it interesting that the method suggested in drawing development very closely follows the way I go about mine. The main difference being the use of a reticle.
I've toyed with the idea of making a grid reticle for my eyepieces, after making a simple cross-hair reticle for a couple of cheap eyepieces used in finders. This article has rekinddled my interest in persueing this.
Should at least make for an interesting exercise in futility,
.