I've got a 6AL on my 46 and a 6 Digital on my T. I'm running their distributors, also. Both work great. The one on the 46 has been on the car for about 15 years.

The only thing I have noticed is that the plugs seem to "wear" a little faster. Might be because they fire 3 times more often than a stock ignition below 3000 RPM.

Mike