So just to offer another view point...
If there was a marker for a recessive gene then it would not be a recessive gene. 40 bucks for a breeder size female is a nice price anyway, but if someone tells me they have a 66% all I hear is blah blah train tracks blah blah. If markers were real then it woudn't be 66% it would be 100%.
I TOTALLY understand some people believe in het markers, I just want to play devils advocate.