I have Malaysian Driftwood in my tank for my BN Pleco. I boiled mine for 30mins on both sides to get the tannin out of the wood. I you should be able to use it if you boil it for at least 1 hour. All driftwood that gets sold in LFS I believe is collected naturally anyway. Let's see what other have to say.
Ok great, It's not the best shape but it's not the worst. It should create one kind of bigger somewhat cave. May look good covered in moss though (Which is what I want to do). Last time I boiled it and let it dry and then put it in the tank... it released tannins. Ill reboil it and put it in a plastic tote and change the water everyday for a week and see how that works.
I know a lot people boil the wood. But there is no reason to do this. It bursts the fibers in the wood causing it to decompose and rot in your aquarium faster. Just soaking and changing the water in a container will give you the same results. It just takes longer. But it is better for the wood.
If you are planning on soaking it, then I would not boil it yet again. Just do one or the other. Soaking will not burst the fibers. Boiling will. Since you have already boiled it previously, I don't see why you would need to again.