I just brewed a Kentucky Common (Dark Cream Ale) this weekend. It had about 17.5% Rye Malt in it. First time using Rye but I figure it will come across in a lighter beer much more than anything else. I was just looking to add something different so I'm looking forward to trying it. I will say even with rice hulls, recirculation and run off was quite a bit slower than usual, not a stuck mash but can definitely tell it was a sticky grain bed. When I was done and dumped the mash, I could of packed it into balls like good wet snow.