Hey guys, I'm very new to vaping. I bought a evic vtc mini, it was the 60w device but with the upgrade its at 75w right now. I have the uwell crown tank and haven't really had that many issues until now. I like to use the .25 coils because of such a better taste and everything compared to the nickel. But now my .25 coil is getting these burnt tastes after taking like 5 pulls or so. I would let it sit for a couple min. and then after another 5 pulls it would come back. I've switched out many new coils and primed them and broke them in like I should. But after I go back up to a higher wattage the taste comes back. When I use the nickel in temp control I run it at 600 f and at 75w. And everything is fine no burnt taste so far. But not as much vapor and taste that I would like. I'm trying to quit cigs so the amount of vapor is a must. Please help I have no idea what's wrong. Thank you in advance.