Your ProCat was ballistic Nigel! Certainly embarrased a few of the modern buggies
Think my 2wd JRX2/understeer device is at a little bit of a dissadvantage on SRCMCC's high grip astro - but its still alot of fun
For the record my Losi is also running an 8.5 BL motor & LiPo battery - mods include a double plate slipper (XXX style), ballraced diff gear, tougher steering levers from the LXT truck, Robinson Racing GRP link arm mounts & RW Racing wheel adaptors which allow me to run 2.2" Yokomo wheels - rare deep-dish 2.2s (Yokomo part# ZC-835) on the rear are used to clear the trailing arms/bottom shock mounting.