Here is a pic of my 6v mod. Its a 501 fitting with 501-801 adapter. I had it running as high as 8v, at 8v it was very hot, I burned juice so fast and the flavor was hot. Now I have it running a 6v. It is pretty good, nice smooth vapor, still eats juice fast ( I direct drip ). The mouth piece that comes with the hv atty is so flat, and I taste the plastic some. Other than that it performs well. I also have the 3.7v box mod running a lr atty. That 3.7 is awesome, performs great, I will say though, I like the bigger diameter opening on the 6v HV atty.
http://www.flickr.com/photos/59411845@N03/5436844711/
http://www.flickr.com/photos/59411845@N03/5436844711/