Having been a PC and Android user for many years, I'm fairly Apple illiterate. The only Apple device I use is the EFK/iPad my employer provides. I have no idea which model it is, but I won't use it for personal use. I'm getting back into GA flying and I'd like to use Foreflight, so I'll have to buy an iPad. I'm not interested in struggling to look at the mini at my age. I'm looking at the 10.9 Air vs. 11" Pro. For daylight cockpit use, is there any appreciable difference in the display brightness between the two? Will both handle a hot cockpit environment equally well? I've read comments about units shutting down when they overheat. I'll probably get the cellular enabled version just for the sake of redundant GPS. Are the 256GB versions adequate for everyday use? The 256GB cellular enabled 10.9 Air is presently $900 while the 256GB cellular enabled 11" Pro is $1100. If choosing greater than 256GB of storage, the Air is no longer an option as they max-out at 256GB. Thanks.