I’ve found the perfect breaking ball. I made it up by accident. I grip it like Forkball except lower on the ball and I squeeze tighter with my pointer finger more then my right. When I release it like a fastball it rotates from left to right and breakes and drops a foot to the right. It spins like a globe. It is faster then my curveball. My dad who was a .800 hitter in High School couldn’t hit it. It also only spins 3/4 to 1 1/2 before it gets to the plate so if there’s high winds it may have a knuckleball effect.
I would still call that a forkball. It just has a different “axis” of spin on it as you described.
First of all, I’d like to see your forkball grip