Wolfgang,
Thank you for your clarification. Yes, I've read the timing threads in the past, but the answers seemed to vary widely, and I never got a comfortable feeling that I understood the issue.
You are saying that the difference between w3=0 and w3<>0 is close to the difference between 2ms and 1ms, and that may be OK.
I am using an 08M to convert an input voltage to a different output voltage. One A-to-D input is adjusted mathematically and then output to the integrator circuit which is in turn tested and corrected by feedback via the second A-to-D. If the delay is too long after the output goes high or low to adjust the voltage, I'm afraid that the adjustment will overshoot and constantly "hunt" for the precise voltage desired. This delay is required only when the target voltage is zero, so I could write code to put it outside of the normal integrator adjust loop, but I'm very short of code space so need to find ways to keep this as short as possible.
Thanks again.