What he means by less loading is to increase the value of the resistance that is terminating (loading) the cartridge.The increase in terminating value is referred to as "less" because the higher value pulls less current from the cartridge.
Also the quality of the loading resistor is something commonly overlooked. I always advise to use common resistors to dial in the value. Then, once you find a value you like, search out a foil resistor (Caddock mk132, Vishay Z-foil...) and use that.
BTW some DL-103 users like to terminate their carts with really high values, like 5k ohm.
I like the DL103r with variable active loading from 300 to 50 ohms.
Also the quality of the loading resistor is something commonly overlooked. I always advise to use common resistors to dial in the value. Then, once you find a value you like, search out a foil resistor (Caddock mk132, Vishay Z-foil...) and use that.
BTW some DL-103 users like to terminate their carts with really high values, like 5k ohm.
I like the DL103r with variable active loading from 300 to 50 ohms.