Just wanted to share a new find. ETS 3000 from Dripless. A little lighter than an all metal caulk gun, and it is easy on the hands for squeezing out Ac100+ gold and A7. I recommend taking a few minutes with some 80-100 grit sandpaper and knocking down the edges of the trigger and handle. It can have a very unpleasant pinching effect that is fixed if you soften the corners.
18:1 Thrust Ratio. Can't imagine needing any more than that for the two glues I use. Feedback on other options are highly welcome. A guy that I work with occasionally had an ETS 2000 and it felt really great. Shortly after, I found this one. They are really well built.