I tryed two time with my yocan and its satisfying for me. The first time i used the ceramic donut and the second i used the quartz coil. Last night i brokethrough, but i dont exactly remember my trip (its like a far dream). For me, i prefere the quartz coil, but my girlfriend prefere the ceramic donut (she is starting, and dont want breakthrough for moment).
With the quartz coil i push the button by 2 seconds step and my girlfriend hold the button all time with the ceramic coil.
We will do more test in my vacation next week.
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