Started reducing 8 day overage from last year, took Monday off. Will take another day off every two to three weeks until I get rid of that overage. Roughly, it looks like I'll need to take the additional following days:
Jan 25,
Feb 19 (fri), Feb 29,
Apr 4, Apr 18or25,
May 9or16, May 30 or Jun 6
to get rid of the overage as quickly as possible with minimal interruption to work.
I will likely take the last week of June and first three weeks of July as 20 days vacation, and possibly the two weeks of spring break in March to consume the 25 days allocated for 2016 plus 5 of the long service days.

Added in 25 days allocation for 2016 calendar year.