I went to the 176 wide because the standard was too narrow and short over the big toe - my right is cocked up a bit - with a poorly placed seam there for my purposes. The 45W was too long and volumous almost all the way around, so it's going back and a 44W is being sent. Probably a 44.5 would be better, but it isn't made. My main problem is not width of the toe box, although that's an issue for the longer outer toes, but is the height or construction over the big toe. The best shoes for me have that soft ventilated fabric ("netting") over whole of the big toe, while most shoes with softness there make it only over part of the big toe, with a seam at some point that's low and uncomfortable, if not seriously painful.

Lake makes the CX218 and 237 with a "slightly wider ball girth to allow the foot to expand under high pedaling pressures." That's probably why the standard width works for you.