I’ll chime in here as well. I got mine installed in my right knife edge about 2 weeks ago (although it migrated slightly closer to P4 while healing). During the first few days you definitely don’t want to bump things. The whole healing process is slightly worse then P0 in terms of just having to be super careful, but after a few days it’s totally fine. It was also definitely a bit more painful to have installed then a P0 implant. I’d say maybe a 3/10 at worst, but my pain tolerance is also pretty low.
I don’t notice it at all while gripping anything. Even lightly hitting the side of my hand against objects is fine. I really only notice it when I accidentally brush my hand against a magnetic surface 
. Overall I’d definitely recommend a knife edge installation.