...a second listen

Hi astro58go. Yes all those points you brought up make a difference. It all effects the dampening of vibrations in the record you are playing. Dampen too much, and you loose information. Dampen too little, and you get extra info that was not originally recorded. Another complication is different materials resonate at different frequencies. Which is why different materials may match better to a particular cartridge/tonearm/table/stand/room.

I could list all the combos I've tried but it may well not translate to another persons setup. I'm just saying it pays to experiment for yourself.  

Thanks for your post.

I do believe that posting one's experiences does help others as they go forward.

Happy Listening!

@lewm You might try a second listen on the Boston Audio mat. On my 401, the #2 robbed all the life and air from the music.