I really like the general idea behind this, but I wonder if stripping the log is the best approach. Actual sap harvesting to make maple syrup involves a longer process of tapping the tree. Maybe there could be a new item that works in a similar way to a behive, which you can place on a maple log. After a while (maybe time similar to pumpkins/melons growing?) it gets to the point where it visibly drips sap (like the behive with honey). At this point, you could right click the tap with your bowl to collect the syrup. This way, it is a bit slower, but doesn't use up the log. Plus, it is more realistic!