Thanks @thekittygirl, for some reason I thought I had stellar memory from Steemit days, and remembered incorrectly. I thought the amount of vesting shares it took to dolphin-ize was roughly 10,000 HP + some change, but I am happily wrong.
I think I powered up 10 or so HIVE, reaching roughly 5,170HP when I received a dolphin notification last night.
So...done deal dolphinized!
Have a !BEER if one's available.