Which is the better one to go for, i hear the 7ch is better if using the immersion 600 but thats about all i know. Not picked a transmitter yet but at present it looks like i am going for a 400mw to save battery power and going to opt for the FPVLR premium combo Antenna pack which i hear nothing but good reports about. My goal is rock solid FPV out to about the 1.5km to 2km distance. Didnt even know there was 2 different model black pearl monitors until now so this has opened up another can of worms and may cause me a problem as buzzflyer in the uk i am buying my P2 and bits from only sell the 32ch version.