I agree with the difference. I've been using Boge SRs religiously for over a year now, past 10 months or so through 6 different tanks in rotation throughout the day on a 5v box.
I used to get between 10 days - 3 weeks, sometimes a month, on one carto (fully dependent on juice type), but the past two sets of "Boges" I got have NOT been up to snuff. The first indicator was the changed condoms. Before, they always came with the long condoms and plug, while these past two sets (I order in 3 box 5packs each time) have all had the short, easy-to-slide-off condoms. When punching with a press, I rarely hear the pop and have to rely on a small release of pressure in the T-handle to know whether I've punctured the metal. Many times this has led to a full bore destruction of the white inner tube, which I toss immediately knowing from past experience it's a waste of juice trying to get one going.
These "new" Boges are going between 2 hours - 1 week tops, depending on juice. That's unacceptable, and I've often found myself at work with 6 tanks all burned to crap and unusable, jonesing until i can get home and pull a full refill session and wait for soaking.
I don't mind stating I usually get mine from ElectroNicStix (have done so for the past few months) and was always extremely pleased with my Boges... until these past two rounds. I'd like to know what's going on, and I'm sure glad to know I'm not crazy in this realization that THESE. THINGS. SUCK. NOW!
Please, I'm ignorant of other brands that will fit the J-Tank type of tank, but I can't keep doing these things for that price and getting such crappy performance out of them.
Does ANYBODY know what other brands and/or vendors will fit these tank types so I can bulk up on something worthwhile? I hate when quality control crap like this happens on a wide scale forcing everybody out of their routine and stable route just in order to find a set-up that's vapable again.