Funny thing though, I actually worked in plumbing supply in the early 90s. I still don't trust plastic pipe for anything but drainage. The first generation of plastic pipe (Polybutylene) was a disaster. Had the nasty habit of bursting quite often and usually when you weren't home. It lead to a bunch of class action lawsuits against Shell Chemical and to it being discontinued after 1996.

I followed the 'crimp then test' procedure without fail for all of my joins; only twice did I get bad crimps, and both those times I knew they were bad, because I couldn't finish the crimp, and had to reach for the hacksaw. Now I know what order to do the crimps in, it's obvious -- just like copper plumbing, build as much as possible away from site, and just like Perl, build and test 100% of your work.

This pipe is rated to 180 or 200psi, and house water pressure standard I'm told is 50psi, so assuming my crimping technique is OK, I feel pretty good about how this installation is going to hold up.