I'm drinking a rye pale right now made with 30% rye malt, 70% 2 row pale. I used all Amarillo in mine,3 ozs at 60 minutes, then 1.5 ozs at 20, 10,5 and flameout. (This is a 10 gallon recipe). With more than 30% I would consider using some rice hulls, this one took forever to sparge.