I like the idea of spring and single stroke as you have to put a bit of effort in to cock it which means you have to take each shot from the begining, unlike some of our multi shot co2's where you line the first shot up and fire another 7 straight after without moving.
Though it does sound like you are offering to start up a Co2 only Comp Eric.
I'm sure Paddy would mail you his score sheet to get you started, we already have our targets and rules. I would add one rule if this goes ahead that after each shot the pistol has to return to the shooters side before the next shot can be taken.
What do you say Eric