Like MMyers, I too had a tough time shooting both the P and TP45. I though I had a fairly solid grip but the two light guns broke my grip and slowed my follow up a great deal. In addition both guns, but especially the P45, had feed problems. I wanted the guns to work but after well over 1000 rounds of trying I gave up.
I've since sold my other .45s as well, even the full size ones, as I just don't enjoy the recoil. Getting older sucks.
Judging by today's left wing, looks like Senator Joe McCarthy was right after all.