Hi
Personally i run schuamcher mini spikes in the yellow compound on dry grass. And ballistic buggy spikes on the rear and achumcher mini spike fronts in the green compound in the wet.
Part numbers are:
Dry
U6558A Schuamcher yellow rear's
U6518X Schuamcher Yellow Fronts
Wet
U6550S Schuamcher Green Fronts
BBT01 Ballistic buggy green spikes rear
All avaliable from
DMS Racing
Ash