Hey Jeff first off your deck looks awesome.
I'll be building in the next month or two. Did you get your materials from menards? I've heard their lumber doesn't hold up well especially the 5/4" board.. how has yours been doing as far as warping, splitting, etc. Especially after not being sealed for what a year or so?
Your deck is certainly an inspiration
We did use Menard's and my dad used a better grade of wood from a local lumber yard and both have still split in screw areas. I think that's pretty normal as the treated wood shrinks. I do not for see it being a problem at this point. I looked at the fake material but that was over 30 K in material alone and the stuff is super slippery. My brother used it on a small deck and after he did I was glad we didn't get that.