Also, ipé grain is problematic...a lot of interlocked/reversing grain. To prevent checks, endgrain needs to be sealed with Anchorseal (endgrain sealant) on cutting. You need to work it with carbide tooling and power tools -- tool steel won't...err...cut it (at least, not for very long), and unless your guns look like this
I don't believe you'll have much joy trying to drive a handplane through the stuff.
Also, holes for nails, rivets or screws must be predrilled (yes, even nails), or you're going to break or otherwise ruin a sizable portion of your fasteners.
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