1. Anyone know if I can get away with a High Crown??# --, when old head measures ~7/16 Medium Crown.

My Instruments Details:

FairBanks ~1916, Little Wonder, Electric Tone Ring, 8 string Mandolin Banjo.

Tone Ring diameter ~10 2/16" (hard to measure as top is slightly rounded).

Neck floats over Tension Hoop,

Tension hoop height (at the neck cut-out) ~ 1/2".

Old head seems flat (Now Cracked, probably from wood oil).#
Old Head Diameter measures ~10 1-16 to 10 3-16.
Old Head Height measured ~7/16.#