R' Shammai Gross goes to the "HaSofer" store in Yerushalayim at least once a week to pasken shailos on STaM that has been checked there.
Below is a shailo that he dealt with this past a week. A Beis that the tag on top was placed at the far left and longer than it should be. R' Shammai said it was pasul.
R' Moshe Flumenbaum was nice enough to let me keep the parshiyos (he cut of the first 2 and gave me the last 2 -- how I was able to bring to you what I have below.)
Please comment with your thought and opinions. I was a little surprised since I've seen R' Shammai be more makil with these sorts of shailos in the past. The chevra by the shop there were quite "happy" to hear that he said it was pasul since that's what they all seemed to believe it was going to be.