Any one use the msd 7 or 8?

I dont know.

When i spoke with MSD tech and was asking about the difference between the digital 7 and the grid he said they are basically the same. The digital 7 has the two units inside it while the grid is separate units so......?
I just dont know enough to say why one is ok and the other is not.

Honestly i think im over estimating the not NHRA legal issue. Like i said, i don't race on a track so the traction control would be very helpful to me and if i even can afford a mice truck and trailer then i can afford a new ignition system (probably).

I just dont want to get kicked out on the off chance i do get to the track.

How big of a deal do you think it is?
I csn still run at a test and tune night, right?