Those old Bemans,,the ones with the out serts,are not such a bad shaft.If the shaft and outsert are "preped" right,,then they WONT come apart.The trick is useing the highest quility alcohal,(91%),TO CLEAN THE SURFACES,inside and out.Ruffing the joining surfaces is also a MUST.TRUST me,,if you prep them this way,,they only thing that will pull them apart is heat.
As far as the slip over nock goes,for tuneing,,just fletch the shafts with 4" helical feathers,and shoot them through a Wisker B rest.LAZER FLIGHT,,,simpley stated