I have a new house build back split or multilevel. I ended up with a ledge because the also framed the buttom half where the concrete is which is the foundation. My question is I don't want to have the ledge around the whole basement, and would like to have one straight wall. The top of the wall is abour 3 inches in of the buttom, I have checked the leveling and it's pretty good on the button half. Now I was thinking of cutting our 2x3 and level the top to the buttom. Is this the best way of doing it? Some framers are telling me it's better to run another wall un top of that but I don't get why I have to do that when the walls seem to be pretty straight.