Glad I could help. There's one more thing you could try if you're still getting a burnt taste while vaping in the ProTank. I thought about it today, because I was having the same problem after rebuilding the atty. I'd take the first puff or two and it was fine. If I kept going, it would get progressively worse - I figured I had too much wick stuffed in that slot and it was choking off the supply of juice. I took the base off and set the tank up where it wouldn't spill. Then spun the atty off and opened it up and took a few strands of flavor wicks off the coil. Closed it back up and it's working fine!!!
Here's a tutorial good for taking apart and rebuilding the atty:
Vapor Lady Lounge Rebuild a Protank Atomizer, eVod Atomizer A New Way - YouTube
I think this is a good tutorial, the only thing I would add would be to do a dry burn of the wick before you put the stem back on over the coil. When dry burning you want to start at a low voltage and pulse the power button on and off. What you're looking for is the coil to turn red from the center out in a nice even glow. If one end or spot is redder than the other area, you have a hot spot - take a pin poke at the wires moving them round a little bit - making sure they are evenly spaced and not touching each other or the sides of the atty casing. You'll need to gradually increase the voltage till you can see the wire glow. When you have the coil glowing nicely, you can add a drop or two of juice on and hit the power button again to see how it reacts with a load of juice on it. Put the stem back on, fill the tank and you should be good to go!