HooDoo "Houston" 360 steer that won Houston in 2011 - calving date?

Just wondering what the calving date on this steer was.  He was a Monopoly, wasn't he?  I'm trying to get a handle on what the most desirable calving times are for similarly bred steers. 

Looked through old topics trying to see if I could research calving dates in order to target specific shows.....didn't find what I was looking for.  Can anyone offer advice regarding the best months to be putting embryos in to give your calves the best chance at good exposure at the various majors, including percentage steers/heifers at the Charolais national and Jr National.  Talking about ET's bred similar to the 2011 HooDoo Houston steer and not necessarily limiting it to a slick show like Houston/San Antonio.

He was a Paddy Omalley out of hoo doo cow. believe it or not.  Prolly September.  Raised by Dave Allen.

early March for fat steers at Jr nationals  ,early April for Midwest state fairs,,late July Aug for fall majors