How did the ana fuse helped? I figured that changing only the power cfg (8080,8180,8280,8380,8480) in smc helps the freezing falcons. Also one hour of testing? You have some patience

I usually test with a very taxing game which turns out to be f1 race stars (it really drives the cpu / gpu temps high up) and if the game will not freeze in 15 minutes then it's great, even gears of war will not cause it to freeze then.
Anyway back to the topic, yeah, falcons are usually very slow booting with rgh2 (1-3 minutes not rare) R-JTAG solves it with very little tweaking and very fast boot times, usually 5-10 seconds max. I had this experience as well with them.