Ricky and Paul are the top putters in the world, and they both hold their putters in the same unconventional way. Index on the outside rim, other three fingers spread out toward the middle of the disc.
Does anyone know where their pressure points are on this grip? I've always had my pinky against the inside rim and the joint of my index finger on the bead, and can't figure out how they are generating their smooth power with this grip...
I don't think it's unconventional.
Mine is fairly similar, and the middle finger and thumb are really the "pinch point" so to speak, but the thumb isn't really directly over the middle finger. It's spread out a bit more. You don't need a death grip to putt.