Time to upgrade the bag for med/dry ball, currently using UC3 as third ball (of 4).  UC2 showing it age.

Current ball bag has Realty, Zen, _____ and HUSTLE Camo.  I am looking at the IQ Tour, Hyped Solid and the Revenant.  My PSO told me to wait and see what the Revenant looks like in hands of bowlers before jumping in.  Any thoughts.

You have a really large gap between the Zen and Camo.  I think going with Revenant or Phaze 5 is not a far enough step down even though they are.  If we are talking medium/dry, I would lean towards balls like a Hyped Pearl, Electrify G-O, or Burner Pearl.  But of those 3, I would lean towards Hyped Pearl.  That would give you a good compliment to the Camo which also being a good step down when the Zen is too much.

Don't look past the Burner Pearl.  If you are a fan of the Zen, the Burner Pearl give the same look.