b4.1 wet astro turf settings

[zippy]

hi.i went to stotfold today to try out my new b4.1.ive built it as the manual stated.but what a night mare in the handling department.the track was wet ive was running yellow mini spikes F&R nosram istc set on mode 1, the least powerfull running a speed passion v3 7.5. all the rest of the car is standard. the main trouble is the back keeps spinning out so ive loosen the slipper cluctch. everybody elses car was well dialed, but mine was a complete mare. have you got any ideas what i can do what i can do to sort the handling out? has anybody got any good set ups for wet astro turf? thanks simon