Finally got a supertuck

I've been wanting one for a couple years now, especially since I got my permit. I've been toting my Kimber compact cdp II in a Milt sparks vm2 and it's comfortable, but I got it from a gun show, so I was limited to brown(I wear mostly black belts and shirts). I've also been limited on which size 1911 I could carry. So last week I ordered a Supertuck off of midway for the faster shipping time.

I've only worn the Sparks and this holster so far, but as far as comfort goes this holster is definitely the better of the 2. I've hardly taken it off since I got it Friday, and have kept my Govt model High Standard in it. For some reason I just want to carry a full size 1911.

The full size hides just as well in this holster as my Compact Kimber does! Only a slight corner shows, and I'm hoping that once I lose a few more pounds(I'm down to 252 from 268, 5 weeks ago) and lose these love handles.

But I do have one problem which is supposedly easily remedied. The kydex is a little more loose than I'd like for a carry gun and might be the other cause for the grip showing slightly because it's able to shift outwards instead of pulling tight to my body. Granted, in my wasteband with my belt tight it's not going anywhere! But I still don't like the thought. Mine didn't come with instructions to mold the holster, and what I'm finding online in other forums is limited to a hair dryer and covering up areas that don't need to be shaped with a wet bath cloth. Does anyone have any experience with this and can offer some pointers until crossbreed gets back to me?

Also how do y'all let yalls ride? I've got mine at the stock height right now. With it being a bit loose adjusting the cant and height only seem to make it worse.