And on the plus side it doesn't affect a Magellan Gold. I'll try an SVee6 (NMEA mode) later; If someone with a Garmin could see if this binary (which sends binary data your receiver can't use, but again it won't let the magic smoke out) in any way confuses their receiver, I'd appreciate it.

It may be smarter to use a config.ini option to enable this anyway, since you don't "need" it if you set the wrong option you should still be ok.