Still searching myself for consistency.
Started this 2 months ago. Bought 5 protanks to switch out flavors. It never fails that at some point I get very nasty flavor. So I bought a cheap 510 atty to see if it was my juice but the taste waste good through the 520 atty. It has given me several sore throats. I actually think it's coming from the brand new atty's I put in them. Either the primer, the silica wick or a chemical residue that came off them from being new. I talked to the guy at the local B&M about it and He said, yeah, you just have to vape a tank of it and then the next one will be better. I'm sorry but that just flat out sucks folks. And this should be seriously looked at from someone in the industry for the safety of it's general users.
I think the safest thing anyone should do for themselves is no matter what tank or atty you buy. Please do yourself a favor and boil, then rinse your new supplies. Sucks but at least it makes sure there are no unwanted chemicals.
So, it is hit and miss with the protank. I own 5. All of them have leaked. I constantly have to carry a napkin w/ me to clear out the screw terminal and to blow it out when it floods. But I since have learned to carry a few que-tips w/ me. Makes life easier. When the tank gets low and you need to refill, as soon as you unscrew the bottom juice will leak through the mouth hole. Has to do with the release of pressure I believe. So do yourself a favor and stick a que-tip in the mouth piece and you can keep it clean with no leaking, then refill and be happy.
Although, I do like the protanks but so far, hasn't been consistent. I can handle leakage and the que-tip thing but I refuse to settle for the chemical taste every time I switch an atty in it. Whether it be new silica, chemical residue...whatever. It's just pissing me OFF.
I will also say they do however work really well an a provari mini. As they can tighten all the way on them, allowing to use the air slots designed into them. People say they are really airy. Well, yes depending on which mod they are being used with. They work better on my provari mini than they do on my zmax. Because the 510 connection on a zmax is taller than the base around it.
I bought those cheap 510 atty's to compare but what I didn't expect was the satisfying, smooth hits they were producing. But the dry hits sucked major ....
On a whim, I bought a z atty pro today. Really airy for the way I like to draw. But I will continue to tinker with it a bit.
So far, I'm sticking with dripping these cheap 510 atty's at the house and will continue to use the protanks after I've boiled any new atty's. Will try different wicking material to see if it helps and build them myself possibly.
But these damn little cheap 510 atty's and dripping them with a free rubber tip have changed my
vaping experience.