I don't think the width difference you are referring to is all that correct. I feel I can comment since I have compared saberfreaks grips with those on an ESB resin blaster and the difference is minimal. They were spot on. And before anyone jumps to the shrinkage issue....that was minimal compared to a real sterling. I honestly feel, and not just because I use them, that saberfreaks grip material is the most accurate to anything that's been offered before.The real grips were made from plastic and are wider than both Blast-Tech's and Saberfreaks grips. They real fins also have a slight taper, which no replica grips do.