OK, I really like the new nanos...used 2 for 2 days...several refills...no leaks at all but. Between my wife and I we have 11 batteries, all manuals, and 5 of those don't make contact to fire the nano. This essentially takes 1/2 of our bats out of rotation. I'm familiar with the CE3s and pulling out the center post a bit to get contact. Does the Nano work the same way? Should I just ease that center post out a bit to make contact...or will I screw it up?