http://cs.bloodhorse.com/blogs/truenicks/archive/2008/09/08/something-happening-here.aspxThe history of the Unbridled/Seattle Slew cross shows that it underperforms -- but a couple of recent standouts make the nick one worth a little more consideration. Watch for two new grade I winners on the "best horses on this cross" list that is exclusiveenCommunityServer 2007.1 (Build: 20917.1142)http://cs.bloodhorse.com/blogs/truenicks/archive/2008/09/08/something-happening-here.aspx#33864Fri, 13 Mar 2009 21:55:47 GMTb1464f20-99eb-45e5-b651-41da03ecff36:33864aurora<p>There was also the Red Bullet (Unbridled) colt that ran the fastest 1/8 in auction history at Barretts and sold for $2.5 million - out of an Avenue of Flags mare. &nbsp;Then this year&#39;s March OBS sale has a Johannesburg 2-yr-old that just ran a 9.4 (no Unbridled cross here). &nbsp;Looks to me like some folks haven&#39;t noticed the &nbsp;Avenue of Flags contribution.</p> <img src="http://cs.bloodhorse.com/aggbug.aspx?PostID=33864" width="1" height="1">http://cs.bloodhorse.com/blogs/truenicks/archive/2008/09/08/something-happening-here.aspx#15247Mon, 08 Sep 2008 16:49:38 GMTb1464f20-99eb-45e5-b651-41da03ecff36:15247da3hoss<p>Well, the sire may consistently be Unbridled Song, 50% and the dam&#39;s sire line may be consistently be Seattle Slew, but even if the mare is a SS daughter,barring full siblings, &nbsp;that still leaves 25% of the inheritability factor wide open, and if SS is the grandsire, he impacts the dam&#39;s genetics far, far less, 12 1/2 %, unless he&#39;s linebred on...</p> <p>I think the &quot;accomplished runners&quot; is a much bigger factor in the success.</p> <img src="http://cs.bloodhorse.com/aggbug.aspx?PostID=15247" width="1" height="1">