So, I have made the switch. I have one analog left and will smoke it. I guess I'm just too cheap to buy something and not use it. Anyway, I have my ego setup going strong... Several flavors of juice, three batteries, three 3.5 ml tanks, and a good supply of cartos, punched and unpunched. I am pleased with results, but know I will want to upgrade to an APV. It seems as though the Provari is the "gold standard" APV. Is there a way to get comparable performance without dropping the two c-notes? I don't want to pitch all of the 510 stuff I already have, so whatever recommendations you veterans make, bear that in mind. I am so glad to have this resource. You guys are the best!