Paul, you'll be fine. CMP is a good track to learn on. Lots of run off, only two trouble spots, much safer (although slower) than Roebling.

By Sunday you will be quite racy I suspect. Zs do pretty well at CMP, watch for Steve P. up front battling KVS's Miata. Just watch those brakes....you may go through a set of pads on Saturday alone...bring spares!