Signs that your grip size may not fit

Try these steps in order

1. Record the current racquet's labeled size, replacement-grip model, number of overgrips, and degree of overlap. Note that even the circumference of the same L3 can vary with grip material and compression. Hold your normal forehand grip without forcing it, then photograph whether the fingertips press deeply into the palm or leave a large gap. Do not use the photo alone as a pass/fail test; use it to form an on-court hypothesis.
2. During a 20-ball mini-rally, check whether you can relax your hand between shots and whether the racquet twists on off-center contact or slips in your palm. Separate a sweat-saturated grip from a size problem. On 15 volleys, see whether the face stays stable with a short preparation; on 10 serves, watch grip changes and unnecessary tension around the wrist. Record grip marks and pressure on individual fingers after the session as well.
3. Begin with small, reversible changes such as adding or removing a thin overgrip or trying a different thickness. Because weight and balance can change, measure total mass before and after and keep the rest of the setup fixed. Across two sessions, choose the condition in which the racquet does not twist with lighter grip pressure and grip changes remain natural. If neither works, have a specialty shop measure the actual circumference and discuss pallet options before shaving the handle.