I actually filled it this way a few times as well!
It's almost like filling a carto tank!
Hey HBcorpse!
yeap, it is a quite common method used around, so initially we didn't think it was worth stressing out something obvious to us. Seems that making a video to stress out the side refill method (as the "uncommon" one) has been misinterpreted as the only refilling method by a few fellow vapers.
So, second video is up after all to clear things up, better late than never...
Btw, how are you getting along with your Wave? Must be two months now more or less... setup times, performance etc?