I'd thought some 6x7 owners in here would also have a 645. Anyways does anyone get frustrated replacing batteries in the original Pentax 645? They are easy enough to get out, but putting the 2 back in that go in the inner most slot drives me nuts. I had to use a wooden dowel to push in the battery to go onto the contact button. I used quite a bit of force. If I was out in the field doing this I would never get the inner most batteries in. That contact button seems to keep the battery from slotting in like its supposed to. Does anyone else have this problem?