A member of my guild (creator of the loot squid add-on) modified the logs saver addon in wildstar. It appears to have fixed the double save issue; however saving logs now requires 2 button presses. You can find the modified version of the logs addon here (you have the permission of the creator to use this if you want): https://drive.google.com/file/d/0BzSibryWKWCrenlWZVBpZ3hIVHM/view
He says that he moved the mouse-over function on the save button to a different button itself. After you press the button containing your old mouse over function (which he labeled the “pre-save” button), the button is then replaced with the normal save button. The only other change he made was saves now only do 50k events instead of 100k.