After a test session yesterday, i'm very happy with my ETC rev limiter. I purchased the single stage rev limiter WITH the tach output wire option. I hooked up a MSD shift light (msd shift light 89631). The rev limiter picks up about 10% early (ABOUT 7200rpm when set for 8000rpm, spud believes this is ignition noise, but it repeats so who cares). The shift light works perfect, and this MSD light also has a tach display on it for working in the pits (not visible from my seat).
Finally, some decent shiftlight/rev limiter options for mag equiped cars.