Turntable lid up or off?

I keep it down when listening to my SL-1200 MK2. Most of my other tables don't have dust covers. Up seems like the worst option. What sounds best to you? 

Lid on is not good sonically.

Agree. A lid is more than I can handle. A bowl is usually plenty.

@millercarbon, I just use a soft micro fiber cloth for cleaning.  My "habit" is to take the cover off and set it upside on a table on the other side of the room (sometimes I just set it on the carpet).  If I'm not using it for more than a day or so, I put the cover back on.  I'm good with a gummy or two.

@all, thanks for insights & opinions.

I must admit to being interested in the answer. I never put the dust cover on my TT... currently a Linn LP12. I always thought they would vibrate and that would not be good. So I did a search and quick survey of the literature, virtually every discussion is like this one with 80% spitballing... “this makes sense, or “do your own thing”. Most manufacturers don’t say anything a few do. I would like to hear something from The Absolute Sound or Stereophile. i didn’t find anything right off the bat. I’ll have another look sometime. I have spent thousands of hours comparing cables and components, things that make big differences. Apparently this isn’t’ one of them. At this stage of my life, I think would prefer to enjoy the music versus doing a critical comparison (I was a scientist, so it would take time and effort). I’m going to keep mine off. My records are pristine, and if I see a bit of dust I use Last All Purpose Cleaner and it’s gone.