Yeah, I remember your thread about this. It migrated 5 days after implantation. If you’re gentle with your install location for 2-4 weeks after implantation that will not happen. It may migrate a few millimeters over time like mine did after 4 years, but you won’t experience migration of a few centimeters unless you’re rough with it early on or there’s some later blunt force trauma.
Also, if you’re rough with it immediately after install then you’re less likely to have it settle later, because the initial installation injury is a signal for your immune system to promote collagen growth.