If you listen to E. Crenshaw this could be true.  This would be heavy Colby's Dime with Stu Fowler, and Tip (Sad Sack).  Ed said it out his mouth that Teal owned Tip when he owned Sarge and Jeff and that Tip was the far better blood and dog.  This would also explain why Jeep/Redboy clicks so well, that's if Finley's Bo is really bred like a Dime Colby dog as listed.