Thanks for your input Jon. I'll try this method next time I am in the
field and I'll let you know how it works out. The method sounds a
little too complex to use while in the field and being distracted with
the experiment / audience. I fear for some data loss.

However, I've been reading quite a few of your posts and appreciate the
suggestion and all the help you give freely to all. Oddly, I feel
relieved that its not as simple as I imagined.

Thank you
CaliberX