In reply to the original question
. We have Thoms females out of Gato by Colorado and out of Prissy Coyote by Western Astacosa. Each has merits - pups out of our Colorado female tend to me more leggy, great tracking nose and a looser bay. Our pups out of the Western Astacosa female have a HEAP of fire (but can be shy as pups), closer bay (or catch) and smaller in the body. We like and work both but I've based my kennel on the "Western" line.
For what its worth both of Davids stud dogs mentioned have been killed in working accidents in the past year or so. I started two Thoms line pups last week, here is a video of them on the second pig that they've seen. They are 4 months and 4 days in the video.
http://www.youtube.com/watch?v=QTKRSw4XLEQ&feature=c4-overview&list=UUt_7U2QvvyrvsEF5EB-SBuwcheers
Troy