Steve Wood checked the forced deadtimes in the TS crl code. It should be set to 20 microseconds. I then suggested I run this at the bbts1 component winodw:
-> tsTimerStatus()
*** Trigger Supervisor Timers ***
Level 2 : Enabled = 200 ns Level 3 : Enabled = 200 ns Front-End Busy : Enabled = 20000 ns Clear Permit : Disabled = 0 ns Clear Hold : Disabled = 0 ns value = 42 = 0x2a = '*'
Looks like the frontend busy on bbts1 is only 20 microseconds as expected.