Hey Guys, got a question that hopefully someone has a solution to. Picked up a Silver Bullet earlier this week, but when I'm vaping at 6v with two 123a's it's almost unbearable to vape. I noticed that it has a copper spring in it, whereas almost every other mod I have uses an aluminum spring. batteries are both 3v, not 3.7. Is it just me, or has the SB always burned hot at 6v?