First of all, glad it worked out for you to give Motiv a try. I wouldn't be surprised if you're calling yourself a "Motiv guy" before long.
The Tribal Fire is an excellent ball. It's possible that it's rolling a bit early for you at the one house because of the condition. It is a bit stronger than advertised, and you've also got what seems to be a pretty aggressive drill on it. The Fire reacts pretty quickly to friction, so if theres a lot of friction early in the area of the lane you're playing at the one house, that could explain the early roll.
All that being said, the Rage is a much stronger ball than the Fire. For me, it's a bit cleaner through the heads, with a more pronounced, harder move on the backend. Whether or not it would fit with what you already have would be a question that would be better answered by your pro shop operator. He without a doubt knows your style as well as the type of condition you're seeing way better than I could guess.
By all means feel free to message me with any questions, and best of luck!