So I don't exclusively use GG, as sometimes its just not appropriate (i.e. translucent blanks, even when the hole is painted, there can still be some risk of visible glue). I use T88 epoxy most of the time, but I've used GG when I feel I need to gap fill. The T88 is great stuff. A bit on the expensive side, but nevertheless, it holds really well, which was the most critical need I had.
I've also been getting into segmenting recently (started to in early 2022 before life stopped me from turning), and in past discussions there have been some good points made about normal foaming GG potentially breaking segmented blanks or oozing out between segments. I think its a valid point, and something to consider. GG has been great for single-segment blanks and it seems to be pretty darn strong in my experience, but, it is useful to know where it might not be optimal or viable.
The T88 is excellent for segmented blanks where you have different materials...resins, metals, woods. I had problems with the JB Weld epoxy I was using before...it just didn't seem to bond well.