Same balance on my GM8 and my TMB 105/650 with the same size weight in the same place. Does look nice and i just may jump on a used APM if one pops up used. Without the finder the weight was up more. So this 6" is about the same weight.
So Chas, I'll tell you a little secret. Derek Wong has asked me to be hush hush about it because he's afraid their cost will go up and he likes purchasing them from time to time. The Thomas Back TMB triplets are the best of the best. Truly amazing refractors and they are actually at the very top of my list of favorite specimens. Truly amazing spherical correction and flawless color correction inside out. A good buddy of mine has this TMB in an 8" F9 and it's one of the greatest refractors I've ever examined planets with at the eyepiece. Derek has the 9" F9 and that one is absolutely excellent too. And the craziest thing is they're a freaking bargain when they come around. Okay, now back on topic.
Edited by Daniel Mounsey, 10 August 2018 - 07:41 PM.