in my feeling when use this new batch adapter, i don't dispute the new batch's performance is better than old batch much more, in fist working period of battery it's performance is good to close same 510 battery(time is not to long).but when out of this time it's down a distinct view of. so this is my feeling with new batch js adapter.
if you have chance to use some adapter like a altsmoke adapter or 510 js adapter-R you maybe change your mind.
now about 510 js adapter-R(
mod) then still test about battery life.but other test is good all ( thoat hit, taste,vapor volume, etc)
i think about the point of this resistor maybe not have anyone that is incharge of janty to explain this, because it's about marketing policy, if this line(adapter+510 atty) is work better then other line(510 battery+510atty) in same product(510 atty),maybe the other line(510 battery) that can not to sold.