From the
threads that I've seen, the GC cartos are designed differently than KR8 cartos. My best description would be a GC carto is like a combo of a 3 piece units atty and cart rolled into one unit. You may have to do some detailed searches (because I don't recall forum user names that described them), but a teardown of the GC cart has been done by several users. The atty has microfiber hairs that seem to wick great and don't burn. The
juice holder is a D shaped cup similar to a M40x cart. They are expensive, yes. But they are smooth. I use both GC and KR8 on GC
batteries and I love them both. IMHO the KR8's are easier to fill. I can remove the mouthpiece or do a plug fill easy on the KR8. I have tried to remove the mouthpiece on a GC cart twice and couldn't (pobably glued). Dripping through the atty takes time on the GC. Many use syringes to fill them. As many users say, the GC carts are difficult to kill where as the KR8's burn easily.
Anybody else?