I would probably stick with one close to std Phil, just take the roll bars off, as the grip can be quite low. I had been running my 415 up there regularly before I moved. I ran in 27t Stock, and with the spool in, but recently I have been moving back to the oneways, as I just feel they suit my style better.

quick check list

camber: 1.5 all round
front toe: 0deg
shock posittions: std F and R
Ride height; F 5mm, R 5.5mm
Droop: F #5, R #4 (yokomo gauge)
Springs: Yellow all round

All suspension block & and camber link spacers as Std, EXCEPT 0.7mm shims under the front/front suspension block.

You could try C/A blocks on the front too (to give some inboard toe out), I started running it like this and havent gone back since.

One thing to look out for though is the 26mm rims (as thats what I am assuming you running) can possibly rub on the front steering knuckle arm.

HiH
Ed