I'm in the process of rebuilding my arsenal and was just wondering if it's a better practice to put the same or similar drillings on all your equipment and just let the characteristics of the ball dictate what conditions you use it on OR if it's better to use different drillings on different types of equipment?

To be more specific, this is what I think I'm going to be drilling:

heavy:  Power Drive Sanded (replacing a number of old particle balls)
med-heavy:  Action Packed (replacing a Bully)
dry: Scout Reactive (current hole in arsenal)
I use a Storm Hot Rod Pro Pearl drilled 5x5 for medium and house conditions that I'm not ready to part with yet

I'm a right-handed tweener, avg revs & speed.  I typically drill most of my stuff with a 4x4 or similar (nothing exotic)