That's awesome Dan, great work :-)
I did a test drive on my dummy this weekend, quite nice! no big surprises so far, its as roomy, sturdy, big and heavy as i thought it would be, although it does handle a little easier and faster than expected
I'm still working on a custom snapdeck, ways to add grocery bags and attachments for the xtracycle rack
To be honest it doesn't feel like much thought went into the Xtracycle P rack, sure you can clip on panniers, but they pretty much slide left and right, there are only 3 vertical bars in the middle to stop the clips from sliding and these are in the wrong places to accommodate 2 panniers side by side (as advertised)
I'll make it work but for the price I expected more