I work at a post office and I wanted to know some suggestions on which size P99 to get. I have large hands and I held both of the guns in the gun store and the full-size seems to fit my hand better. but Im worried about concealment. how hard is a full-size to conceal? its not like you can strap one on your belt in a hollister at the gun store, therefore I have not been able to see which is better. What should I do?