I just bought new 1,2 ohm replacement coils to replace the original 1.5 ohm coils in my protank 3 / i-stick 50w. I also changed to new e-juice (cherry 50/50 18mg from smoktech). Now it pops really bad when set at 3,7 volts, where it was set previously using mt baker strawberry / bannana 50/50 18mg. It even pops some at lower voltage settings down to ~ 2.8 volts, but I don't get a very strong vape at that setting. Is this because of the different juice or because of the lower ohm coil? Is this the sound of my wick getting fried or what? If so, what is the solution to stop the popping while also get a strong vape?