While not an ideal situation if the problem is templates showing up in My Tasks, you could consider using an intermediary Tag as the Assignee until the template is used. You then Click on a Tag and do a multi-select task and put the Assignee in that corresponds with the Tag. You may also find my new utility tool Sendana Tools-Sendana Add- A Novel Way to Add and/or Transfer Projects and Tasks In Mass - #10 by James_Carl may have some applicability to some of your template work.