Changing Wire to Line to Line Only
I'm not sure about the 30-1, but I just had a rigger on my boat on Wednesday, and he told me that the original sheaves that Ericon used were maxed with the original line.
So, I would say (although you should check with other 30-1 owners) that you can do it as long as you stay with the same diameter line (my situation).
Do you have your specification docs for the 30-1 running rigging? If you do, you'll have your answer....
And, you do, can I please get a copy of your docs for the docs section of this site?
Thanks,