Get someone to chock one of your wheels with a big stone rather than sitting with the handbrake on because you'll knacker your brakes if you do that.
Also, after a run see how close to the brakes you can get your hand without being terribly burnt. It's a fun game.
Also, take it very easy on your warmup session. Don't try and follow a noble round like I did.
Use your mirrors a lot too. If any of those wee radicals or ultimas are on track then they fair sneak up on you, and in the case of radical behind and Impreza then once they get too close to you you'll not be able to see them.