what is the hardest to conceal full size handgun, you tried to conceal carry during summer, I've tried a glock 22, and a 1911 copy in iwb with success, with only one problem 1911 hammer stabbing my side.
The Supertuck Crossbreed has a big top that insulates my hammer area from my skin, I have some aftermarket sights that are rough also, but it works for me. It looks like a monster, but it does a pretty fair job of being functional and comfortable for a 1911 wearing jeans and belt. You might take a look.
Desert Eagle. Sholder holster, and had to wear a large button-up type of overshirt, but it worked. Carrying around a Desert Eagle is a nightmare, though. Very heavy and cumbersome. Terrible idea all-around, really. Shoulder holster is very slow to draw from, incredibly slow.