Sprue suggestion for steamcasting

Im pretty new to the whole scene with everything Ive done thus far
being coldforging and I thought as a first step in casting I would
try my hand at steam-casting. I know the sprue wire suggestion is
12-14ga but Otto Frei sent me 10ga instead in a mixup. Can I cut it
down in some manner so I don’t have to wait on a reship?

Can I cut it down in some manner so I don't have to wait on a
reship? 

Of course. Roll it flat to 12 or 14 gauge thickness, and cut with a
knife. Then roll or carve to ease the sharp corners. Round sprue
works best.

M’lou