[PhilBot]

While waiting for an educated reply, I generated a patch that seems to work. I created a IMUrecal.vi that I can call when I see a large drift while disabled.

It's taken from the original OPEN vi. I'm not sure if it's correct, or if I'm accessing the devref correctly, but it seems to be doing the job.

I keep the devref in a global, and just re-write it with the updated cal values.

Any good?

Phil