What Silver said...
But, I rarely tie my scuds with such a hump beyond what is lent to the shape by just the hook and materials alone. Scuds, when they swim do so straightened out and not curved, so I tie mine with a curved hook, yet fairly straight as pictured. And, I don't normally tie mine with lead as it usually makes them ride upside-down.
I'm not trying to change your mind, just give input as to what works for me and why.
KG's Spring Creek Scud: