I haven't tried any of the older componants in Cheddites or any hulls. I only know that similar hulls in changing componants can build up more pressure than wanted and now not be low pressure.
The best thing for any 16 ga shooter/reloadeer is to join the 16 ga. Society and the 16 ga Reloaders Group, there are more reloads in there than you could possibly ever shoot.

http://www.16ga.com/home/home.html

I believe it is $40 or $45 for both, a one time fee. Money well spent and a lot of help from everyone there.

David