yeah it's Gav,
his Dyno sheet is in the RB26 dyno results section. Nice setup.
Personally i went the route of Tomei 2.8 stroker kit with a HKS T04Z kit to hang off it. I did consider the RB30 and OS30. Couldn't justify the cost of the OS kit and just didn't feel comfortable with the RB30. The stroker kits have proven themselves beyond doubt time and time again. I've never seen a post on any skyline forum "Spun bearings on RB28" or any other major failure and most of them are making 600+ hp at the wheels. After all the research i did i felt the RB28 was the best option for torque and Revs. My target is 700 rwhp on pump fuel, doubt i'll make that but it's a target. Anything over 600 is gonna be nutz. My only worry will be cracking blocks, but that's going to happen with RB26 RB28 and RB30.
I agree the RB30 can be made to go hard, all the 9 sec VLs prove that. Just wasn't convinced it was the best option for my GTR.
Perhaps have a chat with NIB (Steve from Top Racing), he has posted up nice results for a RB30/25 in the Hybrid results section. I'm sure he's had experience with both strokers and hybrids.