I got a dewalt reciprocating saw for x-mas. It has 4 blade positions, up, down, left and right. I can easily get it in the left and right spots, but for the up and down cuts the blade is hard to get in, and it is cock-eyed once it's in. PICTURE: Is this how it's suposed to sit? When it's in the other positions, left or right, the blade sits straight from what I can notice. Any one?