None of my lenses with square hoods are perfectly aligned. Including Leica lenses. As long as its pretty close to aligned, I don't get too bothered. The images of the hood/lens shown here look pretty darn good to me. Overall the lens looks nice, nice, nice on that M6. The gaffers tape on the dot is kind of funny (I can read "LEICA M6" just to the left of it).
A v4 summicron 35 is one of my top lusted-after lenses right now (along with E46 pre-asph summilux 50). This one looks great. I hope it performs as nice as it looks! I hope we see images from it...