Actually has happened with most balls I have used. I have Radical Katana Dragon, Radical Cash, Radical Guru Supreme, DV8 Guru. Some nights it just seems (after a fresh sanding)the ball moves real nice in practice and into the first game but then I need to move to where I’m not putting the ball out as much or even square up . Being a lefty I usually don’t have much company on my side. Maybe I’m throwing slower in practice (meters aren’t on)? Getting an og Katana soon so we’ll see what happens then with a polished ball.