Sinker

I have been searching around for a new pitch to throw. I tried the sinker grip Jake Westbrook uses and it was dropping quite a bit. Only thing is that my friend said it had different spin on it. Should the spin be different from the fastball? I’m pretty sure it wasn’t a curve because I was getting on top of the ball.

if you snap your wrist itsa curve if you are making it break by grip its a sinker

it should spin like a 2 seamer but with the horseshoe that was facing ur palm at release facing more outwards