drying them is the tough part. i"ve cut some, and even the simple 8/4 maple seems to check on me. Maybe they have to be slowed way down, but apparently most surface checking occurs about 40%MC, which is right away off the saw. Cherry too, though i left that kinda of exposed, but not to direct sun. Checked like a SOB, now its only good for garden bench or firewood.
I find that the additional effort is not worth what people expect to pay for it. THey ask, do you saw this 8/4? I say, well i will if you want to pay 2x's the price of 4/4. They don't want it then. I guess they think it should be the same price with all the savings going to them. Slabs are the same way. People make things out of them when they steal them from people who can't get a market. Ebay sells a few, but look at the prices. If they are priced high enough to be profitable, nobody buys them, and if they are priced low, someone steals them. I stick with 4/4, kiln dry it and tell everyone else to glue it back together if they want 8/4!
Good luck
KP