The tracker alignment issue (#1696) suffered some difficulties and eventually started to use the TOFs to determine the overall alignment of the detectors. This helped to some degree but highlighted other issues.

At present I am able to correlate tracks between the following detectors successfully:
-- TOF1 --> Upstream Tracker
-- Upstream Tracker --> Downstream Tracker

Propagating between:
-- Downstream Tracker --> TOF2
-- Downstream Tracker --> EMR
produces a sign flip in the X direction. I am not sure why yet.

Durga: TOF geometry and recon is correct.
Francois: EMR agrees with TOF.

Started relying entirely on the CDB geometry for the reconstruction now (and found a couple of bugs that are being fixed). But still looking for the cause of this misbehavior.