Dimetrosaur testing results.
If dino has more than 80% physical resist before training, after that you can raise all resists that lower about 72% to 100%. I guess this bug bounds to another my bug with overcap stats before training. Etc you can raise all these resists to 100% just when you have 87% physical. Also sometimes, etc with 88% phys, i got different results and couldnt raise to 100 several low 60% resists but its "ok" with 90% phys so maybe something else trigered it too.

Physical resist model doesnt work with other pets but they have this exploit too. I tested it with GD with 710 str (700 cap) and 80+ phys/80+ fire without any success.