yes but just recently at hv right?Give it a shot at 6v. It just gets better.
I vaped it all night last night at 7.4v (really 8.2v on fresh batteries) making sure to top it off a couple of times, and it was very, very nice. All it took was a real quick hit on the button to produce a lot of vapor, and unlike the 510 at that voltage, the flavor was still good. I wouldn't advise holding the button down more than a second at this voltage, because it gets hot so fast, but you really don't need to.
I'm going to try doing this on the same cartomizer until I am stupid and don't refill it enough that it tastes burned, or until I really kill it with the voltage. So far I've been using this same carto for a week, and it is still going strong.
I understand what you mean... but I do my 510 at 6v and flavor is still good but thats subjective I guess....
so if you are taking 1sec hits (which I would think is a pain by the by) and you don't mind that... and the constant topping off.... then I would suggest getting either a 901/501 dummy cart shave a bit and use that and replace the white cap, or an 801 dummy and stick it over the tube housing with out cap as well. this way it's easier to refill ( I can't remember if it was suggested already or don't know if you are already doing it)
I still think its best to leave the cartos at either 3.7v(mostly) or the 5v pt
The only reason is to experience the true benefit of cartomizers...because once you do changes like the using a whistle tip, HV and topping off extra times, or .5 to 1sec hits off and on it sort of defeats the true cartomizer experience (unless you don't mind turning it into a pseudo3pc)
it's just my opinion of course...and I am only making suggestions...besides... what do I know