The critical aspect of positioning Flopper-Stopper is to have it right at that point where gravity pulls the head down. *It is NOT meant to support the head!* You can simulate this ‘gravity point’ just by loosening your neck muscles (roll your head around a few times), push your chin to your chest, and then all the way back (hyper-extend). Now slowly bring your head back forward until your head ‘falls off your neck’, somewhere about half-way back to your chest. Find that point because that is where you want Flopper Stopper to go for the user. Above that they have head control. It’s very cool and almost instant.
*Attached to the Universal Switch Mounting System*