Parallel ignition systems, anybody tried running one?

Killer6 said

1) Did the timing retard when switching to the Chrome box with more dwell?
2) I assume You just switched it at the track(or fave street venue) before racing, not on the fly?
3) Both boxes were spliced in parallel to the pickup coil?

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Only ran 1 at a time. Just swapped ballast connectors and chrome box plug. Drove the he'll out of the car on the street. Probably made 30 strip runs. Ended up just leaving the chrome box in and pulled the old orange box. Bailed out a friend with a Summit Chinese set up. Ended up giving him an old Standard LX101 I had. Still have the orange box. Car is sold.