OK, my take on JC versus Freesmoke.;
Freesmoke and JC are easily the two smoothest e-liquids. Neither is remotely harsh at all. By this, I'm talking about the raspy, irritating feeling, not the nicotine kick, which you can feel at the back of the throat.
Flavor wise, I don't have very sensitive taste, but a sniff test here is very revealing. It's hard to smell the flavor of e-cig.com or Janty liquid, but Freesmoke and especially JC are easy to smell. And delicious to smell, too.
I tried Freesmoke Mint and Raspberry, and liked both. I didn't really like JC's Hickory, but loved their Cherry and Almod Coffee Cake. The Coffee Cake leaves a really nice cinimmony aftertaste. :YUM: I'd like to try their Chocolate Almond and Artic Mint, and will soon, hopefully.
In terms of vapor, Freesmoke produces less exhaled vapor than other e-liquids, while JC produces more than Janty and less than e-cig.com.
Freesmoke gave me no problems with clogging or leaking in the three weeks or so I used it. JC, though. has so far had to be cleaned out of my atomizers every couple days or so. Normally, i don't clean them regularly, or drain them out at night. Maybe that's why most people aren't having problems, they're more .... about maintenance. But with other liquids maybe every couple weeks I would have to blow out excess liquid, if that. ANd I have now tried it in brand new atomizers with the same result. Mac, I'd also like to try your new filtered juice, if you'd be so kind. Maybe that'll help.
Anyway, other than the frequent cleanings, and more limited selection of flavors (which is growing) JC is better than Freesmoke in vapor production, and is just as smooth, and is a lot cheaper.
I've been using almost nothing but JC since Mac's debut, and the few times I do use someone else's cartridges, that harshness hits my throat like a sandblaster. I really do hate smoking anything else anymore.