well now that i have gotten past a long time learning curve i have started setting difficult pins
and im finding that quite a few courses the difficult pins seem to be way easy, this is not a complaint it is only a heads up for you designers, you may want to look at your pins from a more critical eye. the hardest pins i have found so far IMO are the difficult pins on the composite course Royal Melborne these pins are all you can expect for difficult and are more what i consider to be.