HI COLINM! I'm new to rule book combat myself, but I have formulated some basic ideas that work well in a club environment. Try to keep the equipment as cheap as possible. Coroplast and PVC drainpipe planes are heavy, but fly respectably with a .25. Get everyone to agree on a low speed prop, the slower you can get these things to fly, the better the action is, otherwise you just have high speed jousting. A little bit of honey smeared on the wing LE will make picking off streamers easier. If you have a guy who is handy with hot wiring foam wings, you can build them in batches and end up with better flyers. I think that a flat bottom airoil with a round leading edge gives the best all around combat performance, the need for outside loops isn't that great in combat, but still possible with this airfoil. Your launches will be more predictable also. A 48" wing, 10" chord with ailerons works well. I rip a couple of well placed grooves in the styrofoam wing panels, almost completely through, then glue 1/8" thick spruce spars in with TITEBOND carpenters' glue. A cheap covering technique is to use colored craft store cellophane and spray adhesive [3M77]. Hope this helps ya!