OK, so I was reading this article from Motor magazine and those are apparently both normal sparks, and in a waste spark system, the waste spark is superimposed on the firing spark and can be seen as the thick spot on the firing line:
The coil oscillations being so high and wild at the end could seem to indicate allot of leftover energy being wrung out of the coil on that first spark, or intermittent high resistance according to the above article. I'm not sure how it could have intermittent high resistance, but I did notice when looking through the video in slow-mo that on many of the sparks the waste spark firing line was almost to the top of the power spark firing line.
Regarding the low firing line on the second waveform, I found this article from Snap-On which says:
Low spikes or kV readings indicate low
secondary circuit resistance. This can be
caused by a rich A/F mixture, a narrow
spark plug gap, low resistance or shorted
spark plug wire, or low compression. The
low spikes shown are caused by a short in
only one of the spark plugs. The other
spark plugs appear to be good. Spark
finding a low resistance path to ground
outside the cylinder (ign wire shorted to
ground) could also create low firing voltage.
Some more info I found:
A fouled plug (or shored ignition cable), on the other hand, will show an unusually low firing voltage. ... A cylinder that shows an abnormally low firing voltage probably has a grounded spark plug (deposits bridging the electrode gap), or a shorted ignition cable. ... A longer than normal spark (1.8 milliseconds or more) is an indication that the firing voltage is experiencing little resistance because a plug is fouled or grounded (or a plug wire is shorted) probably due to accumulated carbon deposits. Fouling can be a problem if a plug's heat range is too cold for the application (which can be solved by installing hotter plugs). But it may also be the result of excessive oil consumption due to worn valve guides or seals, worn rings, or even short trip stop-and-go driving.
I have a fairly new coil, and I'm using the narrow tip NGK G-Power platinum plugs, so I'm theorizing maybe that could account for my low voltage sparks. They even claim their plugs reduce the required spark voltage. Maybe this is proof? My inclination is that there aren't any misfires since I don't have any symptoms. Gas mileage is great, there's no hesitation and my fuel trims are perfect.