You were shooting 50-100K rds of handgun a year??? Pro's I mean National/World Champion level shooters rarely have that kind of average. Have we heard of you under another name? Are you a pro shooter?
I was a sponsored shooter for almost 10 years, I competed at Rio Salado regularly at Tuesday night steel and the Sat. IPSC matches for years. Attended the Area 2 matches at Rio and had some top level finishes. I also competed at my home range for years up here in the high country during that time as well, not all shooters use a "set amount" of ammunition for training and matches, Its what I used for "MY" practice and matches, some will use less others maybe more.