I had a project one of these but moved it on a few months ago (without ever having had it running in the 2 years i had it LOL) because I since scored an El Dorado (also a non working project) , also because I have too many projects !

When I had the High Hand I was thinking of the possibility of adding another stepper or something , to allow targets to be reset when they were all down .
 Never thought the whole idea through, but I reckon a mod could be done .

Watching this thread with interest , Nino.