From my experience so far, the wireless pro(BE GPS 2200) is the way to go. If you have the plug in unit (BE GPS 1000) the problem is that you have to position the entire combination in exactly the right place or you won't get a usable signal. Maybe different with different aircraft but on the B777 there is only a very small area that works just above the window clipboard. Mine kept losing the signal if I moved the ipad even slightly. Tried both iPad 3 and the Mini. Same result. The 1000 may be a great receiver for ground based activities but it you drive a B777, forget it. Anyone else had the same problem?