If you just came back, careful with training them. They no longer spawn with these stats. Also careful if you have rare pets no longer spawning like Dreadhorse, or Bane dragon, and some prepatch Cus. To give you an idea if you ever intend to sell : Bane dragon untrained : 60-90 Million on Atl, Dreadhorse 60-200 Mil untrained (yes it varies a lot), prepatch nightmares 100-150 mil, etc. Prepatch mares are on high demand and would definitely not want to mess them up. If you want, copy tamer to TC1 (takes 10 seconds and its easy), there you can train them instantly, and you can try different upgrades on them, then delete tamer there and wait 24 hours and try a diff combo etc..It is worth the experimenting.
Welcome back ..