1 hr. riveting on the rear spar and contemplating some part placements.

Did the final riveting on the rear spar.

Hmm... Rear seat back stop.   Trying to get the two parts here to line up.  Doesn't seem close...

So, I tried swapping the left and right brackets which attach to the longeron (which better matched the picture I took of Gordon's setup).  Not much closer.  Again, am I doing something wrong?

NEXT TASKS:

1. Main spar and undercarriage channel.  Still need to hear from the factory on the fit issue I have.
2. Rivet the one on the left wing's step rib that needs special handling.?? (to be done in "spare" time).