eyeinthesky, totally agree with your comments concerning use of strobe lights near fuel installations but should one be starting engines in close proximity to such installations? I think starting is a high risk time for engine fire - better to push away from pumps before starting?
Re calling Clear Prop - cannot really think of any sensible reason why not! We also have liability to think off - just think of the lawyers having a field day if you don't give an aural warning and you injure/kill someone during start up.