I have all 3 in my arsenal, and it can be easily done, especially if you're going to use different layouts and surfaces. I have the Passion, mainly for tournaments, dulled and drilled aggressive, the Special Agent lightly dulled, for most medium heavies I see, and the Double is polished, for light mediums, I did this because the Double didn't make a hard enough move at the breakpoint, and I couldn't get it to grab in oil, now it works great in the spot it's in. The other main difference is core. Me personally, I have never, had a ball with a symmetric core that I could really use on heavy oil....only possible exception may have been the Swamp Monster, and that had snow chains for a cover. The strong mass bias balls give me the harder breakpoint I need when I see more oil, so I have to have the Passion up there at the top. You have to go with what works for your game, so if you can make room for it, and adjust it so there is a difference between that and the others, go for it, the Passion is a great ball.