Gents your draw length can’t change. Its your wingspan Divided by 2.5 or close to it. Your anchor points may change but not your draw length. Change in draw length 1.5 inches means something was drastically off or is now off. Changing your release, lengthening your D loop or changing your grip does not change draw length. It changes where you anchor.
A new grip most certainly will change your perceived draw length. Shooting side plates vs an adjustable grip can make a pretty big difference.
A grip has material on the shooters side of the bow. How much differs by brand, high/medium/low etc.
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