androidaps

Would anyone mind explaining to me, in really simple terms, how to go about using extended bolus/carbs with Android APS? I've tried researching and asking in the AAPS Facebook group, but all you ever get there is "READ THE DOCS!!". Well, the docs aren't too great at explaining a lot of things...

Good news! I've been offered a switch from MDI to pumping. Bad news! I have no idea where to start. My consultant has said I can pretty much have whichever pump I want, which is awesome, but I just don't know what to choose and why. They seem to be pushing the T-Slim and Medtronic 640g models...