Thanks! I sure love riding it.
I like the Tubus rack fine so far, I've only used it once, to carry my normal commute load yesterday, and it worked. It's rated to something like 90# of cargo. I don't approach that level like ever but I have pushed the limit of other racks. And I have pretty much bent the frame of our trailer from overloading it (darn kids keep growing). So stout is good.
I hooked the bottom of the panniers to the middle of the 3 struts, which left massive heel clearance, that was cool. That middle strut angles in as well as back, so I'm not sure that's its designed use, but anyway it worked.