A permanently installed SCOM solves the top speed problem, but it introduces a handful of practical downsides that only really become apparent after living with one for a while.
The Practical Downsides
Extra wiring in the cockpit, a permanent connection point that can loosen from vibration over time, and one more electronic component that can fail are the tradeoffs of a permanent installation.
Avoiding These Tradeoffs
Since the M-JET Speed Limit Remover only needs to be connected briefly for activation, none of these permanent installation downsides apply.