I think you're still a little low, based upon your running photos. You've got serious spray ABOVE the spray deflector, so your cavitation plate which is below that will certainly have water pressure above it. That water pressure above the plate pulls the motor downward, creating significantly more hull drag. It's like having the opposite of a stern-lifting prop.
The advice you're getting here is good: raise the motor first. Then worry about a jack plate, if necessary, and only then try to fly the right prop.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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