bar 10:10 of 3/9 belongs to an up traverse (p1-p2) starting since 3/6, at that bar we were still waiting for r2r of a down traverse (p2-p3).
ps. don't know when will a seq repeats or not I just wait for the next r2r, b2b as a certain person said 'set in stone, everything starts with r2r, b2b'. :p