Event displays for straight line tracking

Below is an event display with all hits in spectrometer (PMChits) for a B=0 central event

Below is a display of all hits from findable tracks as well as the findable tracks using the IsFindable criterion

Below is display of all hits from findable tracks using IsFindable criterion as well as tracks found using TPhTrackSeedFinder with 16 layers chosen for seeds.

I do not understand why I find tracks in the right half of this spectrometer arm that are not in the plot above as findable tracks.

I also worry that the efficiency for found tracks is so low.

I have not tuned the conesize parameter for the straight line tracking algorithm here.   That should help.  I have switched from 4 to 16 tracking planes and the algorithm needs to be tuned.