Alright I cleaned and setup my GT II.
For cleaning, I skipped soaking the metal parts in Everclear since I can't open the base. Instead I just used soapy water and used a syringe to shoot it through the airholes. Seems to have worked. Upon reassembly, I took a few dry pulls and detected a very faint, brassy taste, but not enough to make me start over.
The build has to be the easiest in the history of RTAs. I first tried the same 26 gauge, 3/32" build that I use in the Rose. Decent, however I bought it because I thought it would be a good candidate for a 24 gauge build with its larger chamber, wider chimney, and gustier airflow. So I did the same build with the heavier wire, ~.6 Ω, and am currently running it at 24 watts. Flavor is good, if not as concentrated as that of the Rose, without being too warm.
I'd like to run it hotter, but would need to up the ID to 7/64", which I don't think would fit between the two posts without touching. I could try raising the coil up a bit. We'll see. Right now I'm interested to find out how long the present build will last before needing to be rewicked.