Anyone got the Great White?

Hello!
I’m thinking of shaping a great white lookalike for myself.
I want to have something more “performancy” in my quiver, and i tried thrusters but i dont like thrusters.
So, I’m going for a performance twin.

I already have it sketched in shaper3d.
From my understanding there is a double concave all the way, the question is, is it nested in a single concave all the way, and how deep, where is the deepest part?
And rails, i imagine they are more like 70/30.

Any feedback on performance twins would be appreciated!
Thank you -–/