I was at Gingerman this weekend with NASA. It rained all day Friday and Saturday morning, so the track was really green. I definitely prefer the Supercar 3's over the 3R's at this track; the 3R's are greasy on this surface and need a much looser steering wheel to stay hooked up. I tried both PTM: Race and Off/Off, and ended up being quicker on PTM: Race by a few tenths. Only a 0.8 second improvement from Supercar 3 to 3R's, mainly due to my lack of aggression from the tires not being as confidence-inspiring.
The 3R's still have some life in them, and I think it's because I wasn't getting them nearly as warm as last time out.