"Dyers and Klumpers are combatable. Dyers and Bechtels are combatable"

So if Dyers and klumpers are compatable, and Dyers and Bechtels are compatable, are Bechtels and dlumpers compatable? Have you ever done a breeding to see if McGurty and Applegates are compatable? What strains have you personally bred to test compatibility and what were the results?