I have never shot a Savannah, so I cannot comment on that particular bow. I do own 2 MOAB's. My first was the first custom bow I ever bought. I went simple, cocobola diamondwood riser, with bamboo limbs, 573@28" in the 60" model. Hard hitting, smooth,quiet fast, even with my shorter draw length. I went simple with this one, as it is a hunting bow, and its got some scars to prove it. This is my go-to bow every time.
My newest is 51#@27", 62" length. Its a beauty.
I shoot the exact same arrow from each.
I call them "Meat" and "The Mistress". I have no reason to shoot anything else, as I always find myself trying to hold a different bow up to the Thunderstick standard. I've shot a lot of others, and they were all fine bows, don't get me wrong. But for me, I have yet to find one that grabs me like my MOAB's.
The Mistress