I repeated the study I did on the L1 ADC hold times  ( aLOG entry 16455 ) using date from H1.  It is running the tagged RCG 2.9 and has higher thresholds (MAX_ADC_WAIT_CARD_0 of 20, MAX_ADC_WAIT_CARD_S of 3).  

Here, I record values from the IOP model proc file (i.e. cat /proc/h1ioplsc0/status on h1lsc0)

Again, in most cases ADC#0 Max + Max Delta = Max Hold.  It does appear that better limits of 23 and 5 for MAX_ADC_WAIT_CARD_0, MAX_ADC_WAIT_CARD_S (from L1 data) would work here.  The current CDS bugzilla issue is Bug 791