That's an interesting comparision.

My personal experience with the trifilar oscillator going to caps and to batts discharging on the negative side took my results quite a bit further. I could get the batt voltages higher, they powered a load longer, etc... My trifiliar really isn't a trifilar with all 3 wound the same way. the 3rd wire going to bridge and cap is wound in the opposite direction from the power and trigger.

Anyway, pulsing from neg gave me better results.