I've never been able to get a good high grip on my Glock34. I changed the way I held my gun which helped but it was still a problem. Today at the range I borrowed a walther p99 with interchangeable backstraps behind the grip. It fit my hand perfectly. I would like custom work done on my Glock so that it resembles the walther p99. Does anyone know a place in Michigan where I could get something like this done? I would really like to keep my Glock and would greatly appreciate any help. Thanks.