Really? I'm getting a lot more fills than that out of my Boge. I tried a 510-T and I think I wrecked the atomizer. Went back to cartos. And I'm way past 3 or 4 fills...
I'm also getting wayyy more than 3-4 fills out of my cartos. Granted I burned a few up learning how to use them correctly but as long as you keep the wadding wet they last better than the clearos I've used.