Friday night I bowl on wood with Guardian overlays, the backends are always flying, I will let you know how it hoolds up and if its useable.....But as i said, yesterday my first impression was great, It was freshly oiled for league I was comparing to my 505T which was earlier and smooth, the BP was just 4-5 feet longer and still very smooth also 3-4 boards stronger over all, closer to my 715T in total strength,but much smoother