Agreed no need to test if you are selling top brands like the Italian Aurora and Visconti fountain pens, equally so Japanese Pilot ,Sailor or Platinum pens as these are all individually tested, as are all quality makes. The mass produced cheaper pens which now including Parkers, Waterman and A J Cross, plus probably all Chinese branded pens are not tested before leaving the factories. So I will keep testing this type of fountain pen before despatching to my customers.