MC cartridge High output vs Low output

Looking for an advise. I always used MM cartridges with my Sansui AU717 integrated amp. It has a built in phono stage rated 2.5 mV/47kilohms. I'm considering a high output MC cartridge with 2-2.5 mV output. Most of the reviews of MC cartridges are about low output models. Would appreciate comments if someone tested and compared high and low output cartridges (assuming the same make and model). Trying to understand the actual impact of the heavier coil in a high output cartridge. Thanks!