He does not have the original Tres Dawg dad. As @Slammedsonoma420 mentioned, he worked this release from his batch of F2s because he was losing the Mango on the F4/F5.
I would expect H & L picked a stellar male to breed with for his Appy line continuation, but also he released a freebie, “Alterlatcha” which is Green Crack x Tres Dawg, which would imply he does have a tres dawg stud in the stable, just not the original.