I made Track by Track comparison Gene’s 3D and Full GridLeack fits for 2017 pp510 for runs 18075005-18075086
http://www.usatlas.bnl.gov/~fisyak/star/TbyT/2017/indexFull3D.php
Two sets of plots obtained with Gene’s sample (500 events, on right) and higher statistics (216142 events, on left).
I want to point  
1. Fig. 16-18 : difference in reconstructed pT for global tracks ~ 0.75% *pT^2
2. Fig. 33: efficiency for primary tracks, the main difference  around -30 degrees is due to sector 20.
3. Fig. 39-40: difference in reconstructed pT for primary tracks ~ 0.5% *pT^2