Don't just leave the gun in the holster,,,
You need to insert the gun and remove it many times while the leather is forming,,,
If you don't do that the leather can and often will form around high spots,,,
The opening of the boot itself will not form the "funnel" you need,,,
You will find it stiff to draw and difficult to re-holster.
Water works but will sometimes stain the finish of a new holster,,,
You can also use a leather conditioner such as Lexol,,,
Just don't use too much 'cause a little works fine.
I wrap the handgun in about 5-6 feet of Saran Wrap,,,
That will provide the optimal amount of bulk,,,
It makes the holster fit the gun perfectly.
But the real secret is to work the gun in and out of the holster as it dries,,,
Forming it to the handgun with your fingers as you go along,,,
It takes about the time to watch a movie on a DVD.
It's also the perfect excuse to caress your gun.
.