Q: The website says 1/8" oversize, but what is the actual diameter of the butt end?
A: It is 1/8 OD down the whole length of the grip.
Q: My regular oversize Tacki-Mac grips measure 1 1/8" on the butt end, but the OS unified grips I bought measure only 1", is this correct?
A: It is 1/8" OD the whole length of the grip.
Q: Is the non tapered unified wrap 30-160 grip considered a mid-size grip? & serrated unified 40-160 grip considered a jumbo grip?
A: They are both considered a jumbo grip, the only difference is the surface texture. One is wrap style and the other is serrated.