Wasn't ready to try a trinity yet after seeing that they were more difficult, so cracked open a November 2011 slim to find to my surprise that it was indeed a trinity with 1175 drive, figured I'd have to tackle a trinity sooner or later so had at it.
Only taken about an hour and a half but DGX glitched it in 1min30s, now I had pulled my D pad off due to repeated soldering to it so I had about 2cm of kynar wire soldered to the trace followed buy 8cm ish of standard blue cpu_rst cable. I had decided to follow my usual trinity install method of soldering to the R4D4 resistor up top. I think there is definitely something to be said about the fan ticking occurring when you are approaching the sweet spot, as I trimmed the length of wire it would crash a lot quicker, I would do a couple of hard reboots when this happened and then adjusted, on the setup that worked it crashed twice, and then on the third attempt it showed up in the com monitor (nand-x USB update cable works a treat btw). No real attention paid to wire layout or DGX placement, stuck it where the CR would normally go.
Anyway, thats my experience with my first trinity, got another one on the shelf but got 3 coronas to do as well, will report back later if I notice any favourable patterns whilst doing the others.
No doubt DGX is a pain in the arse at the moment, but even if it takes hours to get the key I'm grateful its even possible in the first place, so thanks TX.