Been running on polished floors all winter with a dex410 using 400cwt oil all round in the shocks 5x1.7 holes and dark red springs, middle top, outer rear in the front & 5x1.8 holes and light green springs middle top and bottom in the back, rear diff nice and loose, front diff locked or as tight as you can get with schumacher yellow mini spikes all round, I did try the nanobyte tyres and they seemed really good for about 1 meet then went to pot so stuck with the schueys as they are great fun. The first round is usually a bit slippery where other people have been in the hall but grips up massively after a couple of races