I have had the Tranquilizer in the front and Chubby Hunter (about 2 1/2") in the back. I also tried a 4 " doinker and think it just fit. My bow is a '02 which is alittle more top heavy. I've decided now to shoot with just the back hole stabilizer. It really shoots the same and in some hunting situations I really hate having that dang stabilizer in the way. I like keeping it simple as possible!

Good Luck!