Hi Steve, great feedback. Now that I'm poised to be more adventurous and can 'feel' differences, I'm sure it will be a new function to activate. I don't want to activate/tweak everything straight off, I'd prefer to bring the changes in when I'm more sure of things.
Looks like the rain might have passed, so I'm charging batteries to visit the field a bit later on when I get the car back from the boss.