A couple years ago I owned a Kahr P45. I tried standard pressure Gold Dots in 185 and 230. I fired the 230's first and thought it wasn't too bad. When I fired the 185's I stopped and checked the box to make sure they were not +P's as the felt recoil seemed to be quite a bit more. After a few more rounds of the 185's I stopped again and checked the head stamp on the spent cases .......... no +P.
Not sure what to think about my experience but the 185's sure had more felt recoil in my hands.