Has anyone used a Blichmann Hop Rocket in conjunction with a whirlpool immersion chiller? I have all my parts on the way and am curious what if any issues people have had, or any unique setups people have used?

No one? Can anyone think of any potential issues with recirculating with the Hop Rocket?

None what so ever!
Now think about it, if you want "whirlpool hops" then there you go, just recirculate and keep everything you don't want in the hop rocket. Then if you want to just catch the cold break and other trub, then I would take Tasty's suggestion and load it up with rice hulls to use as a trub filter to continue to cool down while removing everything you don't want to go into your fermentor. It really is so much more elegant than using a counterflow chiller and having all the cold break going into primary.

Just a thought,
Alan