Well, I still have no issues with my Vivi 'genesis'. I leave it lay on the counter when working to clean and refill all.. Leave it on the sofa full, the table, the - well.. <shrug> Mind you, the wick well-fills its own hole and I didn't drill more leaks. Even laying it full on the side I pierced with a hot pin doesn't leak.
YMMV
Mebbe I'll try. Start with small holes and see if it still wicks. Do you use thick juice? I'd imagine that would leak less than straight PG