i use the boge 3.0 now in a tank but wanted to try something new also im finding that the boges get a burn taste very fast, im getting alot of burnt juice when i blow it out and i dont even run at 5v usually about 4.5 and after about 3 days need to replace carto so wanted to try something new and see if it will last a little bet longer. also gonna try some kanger horizontal coil to see if they last longer. what seems to happen for me is down in the centre tube a little juice makes its way in there and burns on the wire causing the burnt taste,if i push a paperclip down the hole it pushes out black gunk and the gunk also plugs up the hole causing the tank to suck up too much juice, so if there is a carto that dont have a wire running down this center tube should fix most of the problem