Sexed Heifer Semen

Looking for a few straws of Simmental sexed heifer semen, preferably out of a purebred simmy bull.  Any ideas of which bulls are producing sexed heifer semen that is readily available to the public?  Thanks for the help.  Looking to grow from within, so willing to pay extra for the sexed semen.

Ebony's Grandmaster - select sires

http://genex.crinet.com/page3407/BeefGenChoiceLineup lots of choice's. I really like the Mo Better and In Dew Time females.......

I'll add Upgrade to the list...

Ill second the vote for In Dew Time and Upgrade , both affordable too.

Fat Butt

I know Dunk had sold some Next Big Thing sexed online awhile ago but don't think its for sale publicly. I saw the bull running with his cows at his fall sale and he looked amazing!

Built Right, Trademark,Grandmaster

Who has sexed semen on Trademark? I'd love to have some of him in the tank

Upgrade, Fat Butt.

Thanks for the suggestions.  From what I have gathered, Fat Butt is only sold through auction and it doesn't sound like Built Right is producing sexed semen at this time.  Where can you get Upgrade sexed at?  Thanks.

Any thoughts on Driver or Excalibur?  I know Excalibur is new, but he has sexed available and has a killer look. 

Upgrade sexed @ genex http://genex.crinet.com/page3407/BeefGenChoiceLineup