I would be interested in hearing how you are doing in 6 to 8 weeks from now.
BTW. Here is something to consider:
How many hairs are you "treating" a week with the ePen?
Now multiply that number by 6 or 8. That is the actual number of hairs that you are dealing with.
Without seeing the "clinical" information, my best guess is that the ePen is is producing synapse fatigue but still doing the same amount of follicle damage that normal tweezing produces, which is know to stimulate hair growth.
It might feel better, but I can not see it destroying the regenerative tissues in the papilla and bulge of the follicle.
"The job that takes the longest to finish is the one that never gets started." Traditional folk lore.