The Denon DL-103 of any model is a major mismatch on this arm. It's on the low mass side of things for the era, it was used with the Empire cartridges like the 4000 series, which were high compliance. This arm was made when Shure V15 Type III, Stanton 681 EEE-S, Empire 4000. and other similar MM and MI cartridges were dominant. When tracking forces were often 1 gram or barely above, and high compliance designs were most common and popular.