Drilling them both the same you would see a decent amount of separation. Drilling the Tribal a little weaker (pin further away from your axis point) will give you more separation.
It all kind of depends on the shot that your normally see, and what you plan on using the Tribal on. For instance, why do you feel like you can't throw the rage any more? Is it that it's not finishing as well? Or it starts moving too early? These are just two of the many questions that will help determine the best layout to out on the tribal. Your best bet, in all honestly is to go to your pro shop operator and have him watch you bowl, explain when and why you want the tribal, and he would be the best help. After all, he will probably be very familiar with the house you bowl in, how it breaks down, etc.
If you don't have a reliable pro shop operator you feel comfortable taking advice from I would be more than happy to help. It would take a little more info (shot specifics, axis point, rev rate all that good stuff) and preferrably a video of your style. Is be happy to help out more but I'd be wasting your time if you've got a good operator to go to.
Good luck and keep us posted on how it goes with the Tribal!!
Matt
