Is it all leather? I'm unfamiliar with the model, but if its alittle tight that may just be one of the levels of retention. I know on my uncle mikes I can adjust it, maybe yours has that feature.
If it's leather that you want to break in one option is to put a thin sock around your weapon and holster it.
I agree with KMF294, thats what I did with mine and it works pretty well. The bottom line is use, leave the empty weapon in the holster for a couple of nights and then just keep taking it in and out. The weapon that is :lol: