Before I buy I would like to get some opinions on which piece of equipment I will get the most bang for my Buck out of.bumper boy,gunners up, winger zinger.to train alone with.I don't know much about any of them. Bumperboy seems to be the easiest but can only work bumpers. On the other hand the other launchers will launch ducks & bumpers but have to reset after each mark. I'm looking to start training for SR.soon and possibly run a Derby or 2 this fall .what kinda reliable distance can I expect out of the electronics.