Im pretty sure if i get a trainer plane my dad will too. So i could use my dad's controller while the instrtor is using my controller while im doing the buddy box system and vice a verse for my dad. Im just wondering. Do the guys that help out people. Do they want there own controller connected or does it even matter? Me and my dad are checking out field tommorow. We heard about a good one that has about 200 people or so. So that will be a good thing. Like you said mr.flyer how i should buy some of my stuff at the field. If there is about 200 members theres a good chance someone is selling something.