I use Emerald Proto P/P as well, with Turnip and carry pet you get to capture and level at the same time.
For high level fights I use Zeppelin instead of Turnip for the Decoy and occasional beast adds because you usually won't accidentally kill a high level (though it can happen... oops crit
). But Emerald Proto can solo most high level wild pet battles.
If I'm using a very low level carry pet I use Zepp first to decoy and block the attack on the low level... but once you get to 8-10, most low levels can take a hit.