Originally Posted by funkswing
I wouldn't worry about mash absorption. Mash a bit thinner if you want and just sparge until you have your volume. The rice hulls will help you achieve a nice runoff during the sparge.
If you are batch sparging I would just do it like you would any other beer.
If you're batch sparging, don't worry about it.
If you're fly sparging, rice hulls can help prevent alot of frustration. Soak rice hulls in water and add them at the end.
Also, a glucan rest can help increase your extract, and make runoff a little easier, but is not necessarily necessary.
Keeping the temp up helps to keep the runoff fluid and prevents the grainbed from gelling up. I pretty much always mashout when using a lot of wheat/oats, mostly for the higher runoff temp. Think warm vs cold syrup.