VTTC Vacuum Tube Tesla Coil with GU5B - PART.3 (second peak)

I try tuned VTTC on the second peak - 325kHz
Power supply: 4 MOTs (2+2) + voltage doubler
Lenght discharges: 92-93cm
Secondary coil: 11x55cm
Frequency of oscillator: 325kHz
Resonant capacitor: 1,88n 15kV
Vacuum tube: 2,5kW triode GU-5B

[imeprezime]

Same spark lenght as with fundamental resonant frequency. Quite interesting. I thought the overtones were inferior regarding spark output performance!

[FROYOLOLOTM]

how is that possible, I mean there are some special frequencies to create that strangers lightning ?
like awesome vid bro