I recently replaced the chassis on my Hyper8 (bent getting too overzealous when jumping), but didn't realize the Hyper8.5 chassis is 4mm longer than the older 8. I thought the extensions were an optional part, but turns out you can get 2mm in F and R, 4mm in F, or 4mm in rear - but always a total of 4mm longer.
Anyhoo, my dogbones are too short, but I found one in my parts bin that was perfect for the rear. So, I put that on and ran around a bit in RWD only (front bone totally out). Obviously, the CD limited my take-off, but then got to thinking; what if I use really thick fluid? So, I grabbed an extra CD, changed the fluid to 100k, and then ran that abit. Despite still being 2WD, it handled surprisingly well. The thick fluid allowed plenty of punch, yet really helped tame the take-offs. 100k is a tad too loose for my taste, but I think 200k would be perfect.
Anyway, just an observation. I may just run like this for a while.