OZONE PARK, N.Y. - Having watched Unbridled Bomber put in two solid efforts in succession, trainer Jim Ryerson said he won’t mess with what’s been working. Meaning, he won’t wheel the 3-year-old back in the $150,000 Discovery Stakes here on Nov. 27, but instead will wait to return him to stakes company in the $150,000 Queens County at Aqueduct on Dec. 31.