congrats RV, combat is a rush isnt it? I love it and try to go to as many combat events as possible. Most of the guys in our club fly spads also, other guys in CA fly foam combat planes. with the 15's, it looks like you will be doing the SSC class. we generaly fly open B. for more info on combat, go to the rccombat.com site. you might find event s in your area also. the rules for the different classes are there also.