Originally Posted by anirut
May be not by the weight, but the feel when swinging the racket.
If you want to know if you can feel it, just remove that 2-gram grip-holding rubber band, or move it just two centimeters off it's place.
BTW, if you play my modded 370-gram racket, you might think it's only 340 grams.
IMO A double blind test would prove that you can't tell the difference by moving the rubber band as you describe. Total baloney!!!