Direct from Shure:
Revived exactly the same as the original, this companion to the M44-7 provides an ideal balance between skip resistance and accuracy of sound reproduction for entertainment purposes. The M44G is a versatile performance needle, appropriate for both intensive scratching and mixing.With a tracking force of 0.75 to 1.50 grams, and a frequency response which is essentially flat from 20 to 20,000 Hz, the M44G produces a vibrant, high-definition sound. With the same unique Shure Type S cantilever as used on the M44-7, the M44G is a highly reliable performer, which is also easy on your vinyl.
The Shure M44-G is basically equivalent to a Shure M44-7 with a flatter response. The M44-G doesn’t have the huge exaggerated bottom end that the M44-7 has. The M44-G also has much less shrill highs.
The tracking and performance of the M44-G is marginally less than the M44-7, but they perform relativity the same when set up correctly. One difference though is that the M44-G performs horribly when over weighted. More care is needed, as the bearing assembly of the M44-G is more sensitive than its M44-7 brother.
The M44-G is still a scratch cartridge, and frankly it sounds like one. The M44-G is best suited for a scratch or turntabalist that likes to play on real vinyl records. To continue to step up in sound quality, it would be best to sacrifice performance for sound, and look into something like the Shure Whitelabel.