Yea follow my starter recipe to the letter and it should ferment you out. With only 15 lb of honey used all together your ABV is high but not too high to get fermentation up and going with a proper starter of Lalvin 1118. With the must the way it is yeast just gets shocked and poop out if you only rehydrate with a little sugar water. Patience is key with meads and some times even preparing the yeast to start fermenting takes forever. That is the life if a mead maker.
A painting says a thousand words. But a painting while on good mead just looks funny!