I gots a new rig that pulls back a bit, especially the right side (my off hand).  Mine are good hard leather with a molded liner and another innner liner of softer leather.  I rekkon I'll ask the maker, Kirkpatrick, about what to do.  They fit is already good, maybe a touch of talk would let er slip out with ease.  H377z Fire; I'm slower than cool mollasses anyway!  Don't ya rekkon ya otta ask yer leather man?
prs