Thanks for the feedback.
I'm not surprised that you have noticed an improvement with this repair. You have basically been upgraded from a MMC20S (S = spherical) to a MMC20E (E = eliptical) which is a higher specified cartridge and was more expensive at the time of release.
I must add that if you have also noticed a volume increase then I reckon your cartridge was pretty much on its last legs in any case so the improvements would be more noticable if you have been listening to a cartridge dying over a period of time.
Chris.
The use of metaphors should be avoided like the plague. They're like a red rag to a bull to me.