very true ...well almost ...it is a downgrade to be truthfull once the batt levels off you get a constant 3.2 to 3.5 volts..except riva, i believe, which is a true 3.7 volt, but dont quote me the 180 mah mini batt for the 510 levels out at about 3.5 to 3.7 volts so it is a better vape but battery life sux ........if you can wait 4 or five weeks check out the infinity pro from notcigs or just get a blemished one they are not that bad and some have reported that the blimishes are not even noticable...but if you can wait the infinity pro will be awesome the hit you get when you take your batt off the charger.....imagine that through the whole batt life doesnt drop off or change at all for six to eight hours....
Once you vape with a mod, it's near impossible to go back : P For the record, the AW 17670s included with the Prodigy come off the charger around 4.2v and stay there for a bit... even after a few hours of use, they still hover around 4...
Only e-cig I'd consider to replace my Prodigy would be a Precise P18, a ProVari (although I think they're ugly and definitely not as reliable as an all-mechanical tube like the Prodigy... VV= lots and lots of circuitry inside), or a Reo Grande (not sure how feel about vaping from a box)