I'm in the process of re-siding my house and will be using cedar shingles on one gable end-only about 2 squares. The shingles the lumber yard sent are #2 and look a little ragged with uneven sides and furry bottoms. I've seen the terms "re-squared and rebutted". Does that mean they are straight on the sides and flat on the bottom. If so, I think I'll send the #2's back and get the r and r's. What do all you sidewall shinglers use?