Thanks Kal!
I really appreciate the feedback!
also, I did some more mocking up while I wait for the rest of the new (IE:scaled correctly) chest plate to print, I *think* at this point, TPU with like 3 walls and 30% infill (almost solid) is the way to make the Sean Fields Collar work without modifying the collar. it looks really really promising.
I'll post more pictures once I have more of the chest printed and the collar mounted up.
sadly, that will be at least 2 weeks, since my real job sent me to MA for 2 weeks... at least the weather is nice.