If you overtighten the nhaler adaptor it won't work at all. I just loosen it off a bit and it gives a great draw with no airyness(if that's a word).
That's a good tip for ppl to know about, tho it wasn't the issue in my case. I've become well-versed in adjusting adapters, especially since the moving center post in some of them needs to sit just so on both ends. The loosening tip is the first thing I tried actually, since it's said that with
some KR8 batts, that in itself will work with a GC even without an adapter.
So, to identify the adapter type that I received I finally got out all possible batt end connections and all possible mate end connections. Tried all combos of batt/connector end = KR8, 901, 510 or 801; and atty/carto end = 901, 510, 801, KR8 carto or GC carto.
The only combo that worked with this adapter was *901 batt > KR8 carto, so that's what it must be. Nhaler does sell those too, and it would also look similar to the KR8/901 > GC version, and probably be especially easy to grab in error in the absence of the GC one that had in reality run out. Someone else sent one back recently for same reason -- maybe that also turned out to be a 901 > KR8 carto. (*For the person who is always out there when 901 batt > KR8 carto comes up, and thinking an adapter wouldn't be necessary for that since it isn't for KR8 batt > 901 atty: It is.

)
I do like to have 901 > carto adapters on hand since some of my mods are 901 style, tho I was pretty well set on them. And I found out via some received in a Chinese order that actually, GC functionality can co-exist in the same adapter. (They didn't claim it would or even intend it to I'm sure, since they deal in nothing GC; it just does.) As such I've been using those ones since before I ordered this one, and was just curious if the official, dedicated GC adapter would perform much differently. Now tho I'll be watching the 'gold letter' GC thing before deciding whether to order more. And Nhaler has been very generous with me on my previous orders (plus I got 10% off and free shipping on the one this adapter came in); so bottom line, I may just keep it. If I do order more GCs eventually I may take another stab at it, and mention this for good measure.
