So I did one of these and actually got a win! Number board 3 in an all A+ lobby. This race is very boring but intense at the same time. Luckily I was in a group that was legit. Qualified P4 and ended up in P2 by the second straight. From there, the top five of us did nothing but bump draft each other for the next 2.5 laps... which is exactly what you want to do. We actually broke away from the group a bit (not a lot, but enough so they were out of our slip).
So, of course, last lap last turn it's every [wo]man for themselves. I decided I was going to do the opposite of P1, so as he went high I went low. I took over P1 but barely. It looked like I was going to get overtaken by a pair that were in the middle but got a big bump from someone (probably by accident) which gave me the momentum to take P1 by .041.
But, again, it was nice to be in a group of smart drivers that just kept tight and worked together...
Definitely one and done for me. The easiest GT1 race I'll ever win.