I thought you said you weren't a woodworker! I see a sweet new Powermatic in the background behind those nice looking slabs! I'll bet the big ones were fun moving. I have some 12/4 honey locust slabs that I needed a couple people to help me with when they were wet. Sorry again about the drill hole in the side there. I'm glad that someone kept that tree from becoming firewood. I still wish it had been me, but I'm glad you got some GREAT looking slabs. There's a recipie somewhere on this forum for a boric acid/borate/ethylene glycol based antifungal/insecticidal solution that I'd think about getting on those slabs while they're still wet, unless you're kiln drying them. I remember seeing a lot of insect activity under the bark. From what I've read here and on another woodworking forum, you don't need to worry about staining from the ethylene glycol (antifreeze) base for the solution. The pieces I've treated are still too wet to plane, so I can't personally say to the color thing. The walnut shouldn't show up staining anyway. I'd just use the orange antifreeze.