1.6l Miata weird spark issues

So I went to set the timing on my miata for the first time, and got the timing light hooked up and such. I noticed that the coils are sparking normally on cyl 3 and 4, but 1 and 2 are doing a weird little rythmn. ie 3 and 4 fire twice every .5 seconds ( as an example, its actually faster lol) but 1 and 2 fires 3 times in those .5 seconds.

Things I've done:

swapped wires on each coil, it followed the coil and not the wire. the passenger side of each coil seems to be doing the triple firing thing.

new plugs/wires - no change

tested ignitor (igniter?) - seems to be fine compared to measurements on miata.net for resistances

cleaned and checked grounds - no improvement

At this point do I replace the coils, ignitor, or both? Appreciate any help!

All the weird ignition and misfire issues on my 1991 Miata were due to a bad Crank Angle Sensor.

In reply to PseudoSport:

What sort of symptoms did you have? Just wondering if they're similar. AFAIK, the ignition system goes like this (well, the part I'm interested in):

signal from ignitor goes to coil #1 (2 and 3 cylinders), second signal from ignitor to coil #2 (1 and 4 cylinders).

On each coil, one of the plugs fires different than the other plug on that same coil.

Could be wrong, but if I understand correctly seems like the ECU and thus the CAS don't have anything to do with the different results from the two plugs on each coil.