There are several different types of rev limiters...I'm not sure which you are referring to. The only "mechanical" limiter I know of is a PSI and it doesn't work on a Vertex unless you do a band clamp conversion on the mag. Currently, we're fixing folks up with a crank trigger pickup to monitor engine speed and then using a special relay and RPM switch to limit revs on Vertex, Super-Mag and Sprintmags.
Any rev limiter is going to simply remove sparks randomly...that's how they work. So, pretty much ANY rev limiter is going to be safe for virtually any supercharged or naturally aspirated engine on gas or methanol.
The only time when a rev limiter would NOT be safe for an engine is if it were ingesting HUGE quantities (volume, not percentage) of nitromethane and then amount of liquid in the cylinder could cause physical issues if the fuel went unburned.
Spud