Suspect:
SBS8662M
(BN 8) - (BN 69)
SBS8517A
(BN 69) - (BN 8)
After observing for some time, and spotted 8517A on at least 4
different occasions on Sv 8 on weekdays for the past weeks, I think
it's likely 8517A & 8662M did a 1-for-1 swap. 8662M is still
stuck on Sv 69 for weekdays as of what I know after months..
And if this is true, then the number of non-WABs for Sv 69 would
still remain at 4 (2 B10TLs + 2 Striders), which tallys the e-tt
slots. Puzzle might be solved at last.
