When I refill my carts I get a really hard draw. I think I am pushing the cup too far in. So I set the cup in the cart and use the atty bridge to correctly place it in the cart. I am getting a much better draw now. My question is does that make the cart too far on the bridge of the atty or not. Am I going to burn my BF? Should I push the cup just hair farther? I am familiar with these type of carts I have been using a Blu for quite a while now. I never had to use the atty to position the cup on my Blu, So this is kinda new to me but not really. I also can't beleive how much vapor this little 403 puts out.