Posted for "richard  titsworth" <rtitsworth@mindspring.com>:

 Charlie,
 
 Would love to know what you find/conclude.  Are you doing any additional
 testing on the tips - tuff video, ground effect, etc???  As you may know,
 some ES folks have created customized sets/shapes for their ES's to allow
 rear visibility of the wingtip strobes - to eliminate the rudder strobe.
 I'm considering the same and am thus interested in any info on tips.