Hi Tom,
You are right. Lorne mentioned in his post Hooking for fun and income that he opened a ticket to address the Macro/GoSub issue with the predial hooks.
However, it looks to me, that the ticket is only referring to the trunk predial hook. I updated the ticket, asking for the other hooks to be included as well.
So assuming it will actually be implemented the way it was suggested in the ticket, I went ahead and updated the github repo to support GoSub() as well.
Refresh the repo and let me know if you spot anything wrong.
Thank you