discussed Cited "see, e.g." United States v. Wilson Lang, 405 F.3d at 1065 ; United States v. Waldroop, 431 F.3d 736, 743 (10th Cir.2005) (concluding constitutional Booker error was harmless beyond a reasonable doubt because there was no reason to believe the district court would impose a different sentence upon remand); see also United States v. Small, 423 F.3d 1164, 1190-91 (10th Cir.2005), cert. denied, ---- U.S. ---, 126 S.Ct. 1377 , 164 L.Ed.2d 84 (2006) (reviewing to determine whether preserved constitutional Booker error was harmless beyond a reasonable doubt); Delaware v. Van Arsdall, 475 U.S. 673, 681 , 106 S.Ct. 1431 , 89 L.Ed.2d 674 …