Yeah, I'm an ice-chucking back-yarder. My rig's slow enough that I'm willing to lose the 1% ice in exchange for cutting hours off my boil.

On a related note, you can use this same freezing trick to make the world's best apple cider! Just throw a gallon in the freezer and let it freeze partially, more or less depending on how you like it. Then pour out a glass of the sweetest cider you've ever had!