Cat K1 Aero build and Diff oils

[Kelk]

Morning all,

There seems to be a very wide ranging view on what diff oils are used on what basis within the K1. So as I'm about to build one over the long weekend I thought I'd ask for a good "all round" starter diff oil rates for front and rear.

I race at Surrey and Hants - not too bumpy, high grip astro and I'm most likely to use the car in bad weather or over the winter

(Knowing me I'll start alternating between 2wd and 4wd frequently)

Also any tips or tricks I ought to be aware? I've built a couple of KFs already so I presume the majority will be the same and I've seen the set up sheets available but just wanted to sound everyone out

Thanks