All this OAA is a bit off topic, so sorry for adding,but aside from that I thought if you did 80 days consecutively, or 90 days in 12 month period, then that's a credit for OOA. I looked up the order on this a while back and that's what I recall.
I'm an ATM who has almost done 22, never done an OOA. I asked PSF when I was due one and I got told you (and the Sgt used the term OOA) the last time you did an OOA was in 2002. This was when I was a JT on a Tonka Sqn, so it would have been the 90 days in 12 month thing, but as he referred to it as "an OOA" then I'm guessing that there's no difference how it's gained (be it 90 days in 12 months or an actual OOA) as long as you've a credit then that's that.
As for turn round time, simple fact is that there’s not many roles for TG1 outside of FU dets.