Thanks, George and Patrick.
I just don't think that a 41 plus the socks will work, mainly due to my toes already pressing into the toe box without any socks on. I also really didn't like the toe pressure at all--that was a dealbreaker, even if they stretched out a little bit.
That being said, I think another 1/4 inch in the length will take the pressure off (it simply seemed that they were too short for my comfort and I don't want to break them in only to find they still don't fit and are then un-returnable), in addition to possibly still leaving my toes against the ends of the toe boxes or only a little room to spare.
Patrick, your feedback (I had read it on your site before) is very helpful, considering we are close in foot size.
George, thanks for letting me know that they will stretch out and to take it easy for the first couple of weeks in them. That makes me much more comfortable only going up to the 42.
Now I need to go try on the socks before I send the package back...