Hi Jfacker,
I owned a MMF-7 for a while and it sounds to me like you have covered all of the tweaks known to help the Music Halls. I'm not familiar with the goldring as I used a Shure V15VxMR, but I would think that trying a different cartridge should help many of the things you describe. I have heard of folks changing to the 1022 stylus and they report improvements. With that Project arm you'll need to stay with a high compliant cartridge. The Music Halls do have a bit of a darker sound but you be able to get tight bass. Whether or not you want to spend the time and money to improve things with the MMF-5 or change tables is up to you, but unless you're willing to spend at least $1.5K I don't think you will significantly improve on the table you have.
I owned a MMF-7 for a while and it sounds to me like you have covered all of the tweaks known to help the Music Halls. I'm not familiar with the goldring as I used a Shure V15VxMR, but I would think that trying a different cartridge should help many of the things you describe. I have heard of folks changing to the 1022 stylus and they report improvements. With that Project arm you'll need to stay with a high compliant cartridge. The Music Halls do have a bit of a darker sound but you be able to get tight bass. Whether or not you want to spend the time and money to improve things with the MMF-5 or change tables is up to you, but unless you're willing to spend at least $1.5K I don't think you will significantly improve on the table you have.