Maple Burl

I just had a logger friend of mine drop off a maple burl in my back yard. The burl part is about 4 feet in daimeter and is quite round. I have never had a whole burl to work with before and I was looking for some recommendations on how to best saw it up for use. Is there a procedure for deciding directions of cut? Should I post a picture of it someplace to better describe it? I have two ways I can cut it, I own an Alaskan and have a friend who has a Lucas with a slabbing attachment and another who owns a Wood-Mizer. I have seen bowls turned with the raw edges exposed, how do they extract that from the burl? Any suggestions would be greatly appreciated. Thanks.
Best regards, Charles
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