I'm building a wall with a Bolduc stone. While the wall looks great to the eye, it is not 90 degrees from the house like it's sopposed to be. It's out by about 8 inches over 50 feet. I'm wondering if I should fix it (2 days work), tell the customer about it and see what he thinks, or say nothing, as he is real happy with it right now. any opinions on this would be appreciated.