OK, Lovechild here's time to be sensible :-)
Pins are going to be the quickest over a single lap, though new ones are really hard to be quick on. Too much grip on the carpet and very little grip on the slippy. If you are an experienced racer and used to going quickly on multisurface tracks then you want pins all round.
Minispikes are less aggresive on the carpet but more grippy on the slippy, so over the whole lap the grip feels much more consistant. If you are less experienced with surface changes or dont like constant changes in grip level then go with the mini spikes all round.
We typically find that touring car drivers are better on spikes until they get used to buggies and are able to enjoy mixed surface racing.
Look forward to seeing you
