IPE - Checking on boards, not on ends
Have a few IPE samples from some suppliers, and decided to purchase a board locally to test. Left a 1 x 6 outside on my existing deck in the sun, for approximately two weeks. It rained a few times, weather has been cool here in Los Angeles. The board lightened a bit, as expected, but I have noticed a lot of mild checking on the full surface of the board. There are hairline cracks throughout the board, along the grain lines. I know this can happen on the ends without sealing after cutting, but is it normal to see this on the face, consistently throughout?
It might ultimately be OK for my application, but I was surprised to see this. If this is common, does the checking get worse, stay mild, or close up with age, and if it is not normal, could there have been a problem with the drying process?
Finally, I am considering IPE, Garapa, and Red Mangaris. My primary goal is little or no maintenance, and resistance to termites and rot. I am OK with lightening in the wood, but do not want to seal, stain nor do anymore than mild cleaning. Can anymore suggest experience with with other than IPE, for durable low/no maintenance hardwoods such as Garapa and Red Mangaris and if there are benefits to either of those two (or others) over IPE.