If you were to come to Shepreth (which is near Cambridge)for an HFT comp the shoot fee for a non member is £7.50, which means you can use all the facilities at the club on the day. You don't need to be a member of either governing body for club shoots, just turn up. The next Shepreth meet will be 03/03/08 I think and I'd be happy to show you the ropes if you wan to dip your toes in.
Ryan