WOW, interesting thread... I've been using the Zeus Sub ohm with .4ohm coils for at least a year/two now. Been having issues recently with bad taste. trying to pin it down... meds, mouthwash, vape tongue, covid, same juice for too long are all possibilities but after seeing this, I'm wondering if it's just trash coils! I was about to buy another Zeus tank and another couple packs of coils. I agree that the coils used to last me a month, but now it's like a couple days and it tastes like sh!t. I bought 14 new bottles of flavoring (up to 68 flavors now - some same flavor but diff companies) and have spent about 15 hours (so far) looking up recipes, running them through my calculator to get exact recipes for 30ml, 70/30 blend, 10mg nic using 100mg/ml 100% vg Delosi nic salt... then past them into a word doc where I can easily record the actual values I mixed at. I use an AWS LB-501 scale (as suggested on here years ago) and measure by grams. Scale is so sensitive I have to turn ceiling fans off and I try to be as exact as possible... usually am within 1 or 2 hundredths of a gram on my measurements. I have only made a few new recipes so far, been busy as hell. Nasty taste went away but now it's back. I have 5 tanks in all (not all Zeus) and 3 single 18650 mods so I can do 5 flavors at a time to rotate through and test each day (steeping and shaking). Yeah, a bit ocd here. But the coils I have aren't exactly new as I buy 4-5 packs at a time and since they were lasting me about a month... it's been a while. I'll have to check to see if they say NEW on them as I recently broke into the newest pack I have (have 2 packs left). So I just came on here to look for a new tank to try because I vape at 25 watts and even .4ohm is intended for more like 40-50 watts so I'd like to find something that has .6 -.7ohm coils available. Not sure if that even exists... most I've seen are .4 down to .17. But am going to look at these latest coils asap to see what's up. Glad I ran across this, Now I def want a new tank, lol. I see Gvape has a new Zeus MAX out but of course hard to come by, more expensive and more expensive coils. Perhaps they cheapened them so we would spend more money on the new tank/coils. I'm a cheap vaper. DIY juice, my mods are years old, tanks are years old... buy 4 vtc6 batteries about every 4 years, rotate through them in order (again with the ocd). Always drain them completely, charge and place in rotation. All theses stores want us to spend $500+ each year to get enough points to get 5$ off next purchase, points expire, blah, blah, blah. I don't want to (and cant afford to) spend that kind of money on vaping. I have enough invested in 68 flavors, and nic that I should be good on juice for 2 years, lol Not pleased with the high shipping costs everywhere. They claim it's for adult signature but last 3 orders where I paid $20 shipping, arrived without signature required so they are charging for it but not using it. Well, I guess the one required signature but my mailman signed for me and left in mailbox, lol. I know him so that's cool but what's the point in paying all that extra for nothing? 8Vape doesnt charge for it but every other place I've looked at today does... most are $15, which is better than the $20 I paid last few times. I try to stock up so I don't have to throw away $20 + cost of product for 2 packs of coils. Sorry, a bit manic today. I'll stop.