sorry just to clarify, zapping session = 7 minutes on - 20 minutes off - 7 minutes - 20 minutes off - 7 minutes on. And the C-tronix wider range setting was the 14 mins on - 20 mins off - 14 mins on - 20 mins off - 14 mins on
I mixed these around a bit but usually on had time for one session per a day at HC setting