Another thing is, what air flow ring do you have at the bottom. Maybe you have some blockage at the 510 and creating too much vacuum. If you want to stick to the protank then I would purchase the air flow ring. It's like a $5.00 part that actually improves the airflow in the protank 2. But to be honest I had the most troubling experience with the Kanger products. The Aspire BDC dual coil was so much better and was cheaper. But after 2 months I out grew these products.
I tell new vapers this as a progression. Enjoying flavor in vaping is a big thing. Not so much the vaper production. Start with a simple dripping carto. Nice cartos last a long time and has one of the best flavors. Learn to drip and just enjoy vaping. Move up to something more advanced. By pass these cheap clear tanks and move up to a Kayfun/Taifun/Fogger/ect. Look at how many posts their are about my Aspire coil keeps failing, my Protank keeps flooding or I get burnt flavor from my clearo. Keep it simple, carto (not carto tanks) will make vaping a pleasurable experience. My first vaping experience was a Kamry 100 kit. Came with a simple carto and it was so great. Then I got a Protank and all hell broke loose. Aspire tank, Carto tank, Joytech tank, and then a Kayfun. I've been vaping a while but I still can't master a Kayfun (I don't know why). Now I'm vaping only Genesis tanks and RDAs. But looking back I should of stayed with a carto and just moved up to RDAs.
I tell new vapers this as a progression. Enjoying flavor in vaping is a big thing. Not so much the vaper production. Start with a simple dripping carto. Nice cartos last a long time and has one of the best flavors. Learn to drip and just enjoy vaping. Move up to something more advanced. By pass these cheap clear tanks and move up to a Kayfun/Taifun/Fogger/ect. Look at how many posts their are about my Aspire coil keeps failing, my Protank keeps flooding or I get burnt flavor from my clearo. Keep it simple, carto (not carto tanks) will make vaping a pleasurable experience. My first vaping experience was a Kamry 100 kit. Came with a simple carto and it was so great. Then I got a Protank and all hell broke loose. Aspire tank, Carto tank, Joytech tank, and then a Kayfun. I've been vaping a while but I still can't master a Kayfun (I don't know why). Now I'm vaping only Genesis tanks and RDAs. But looking back I should of stayed with a carto and just moved up to RDAs.