I'm running 7 10 3 f-r on my ST RR. For shock fluids, I'm using 50wt all around due to the heavier 1515 1Y and 5S 6000mah lipo. I tried 7 30 3 before but I didn't like it.
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)
I am running 5/20/3 diffs, ofna 16mm hard springs, 10mm of preload on each shock with 35wt oil all around. Love the setup. It is forbashing and works great! My truggy weighs 11lb rtr.