In Bogus, I used the SVT fast model and fast cylinders for the other subsystems, with a uniform magnetic field and with all but multiple scattering physics processes turned off.
In bbsim, all of the subsystems expect for the SVT were turned off. Just as in Bogus, the only physics process turned on was multiple scattering, with a uniform magnetic field. In Beta reconstruction, consistent magnetic field settings were used.
The following plot shows track parameter residuals for both Bogus and bbsim. The agreement is reasonable.
