Being 6'6" 275, i know what you mean. the xds and walther pps are great concealable pistols. just don't use the flush fit mag, and you will be fine.
Favorite range gun for the money - CZ 75B or STI Spartan V 9mm
Go-to carry setup - Walther PPS or PPQ in FIST kydex holster 1AK
Favorite semi-auto design - HK P7
"A Sig is like a lightsaber - not as clumsy or random as a Glock."