My size 8s cope pretty well but I would definitely recommend slippers on concrete.

Don’t slide, which is why I use them on my polished concrete floor. It keeps them where I leveled them, and makes the nudge affect tilt a bit more.

If I can’t fit in between the games, I use my cart to pull them out of the lineup for maintenance, and back in at the end of the event.

We have polished concrete floors at the Ann Arbor museum and we use nylon bottom leg levelers.

Two companies sell these ( www.opentip.com and www.cabinethardware.com )

Opentip has better unit pricing of $1.03 each (HDL-LA38-212), but $12 worth of shipping, these are 2.5" tall levelers.
https://www.opentip.com/search.php?keywords=HDL-LA38-212

Cabinethardware.com had a higher unit price of $1.31 (440442) but only $5 for shipping, these are 3" tall levelers.
http://www.cabinethardware.com/SearchResults.asp?Search=440442

So basically 36 from each company worked out to be about the same price after shipping.

These work very well. We get the front leg levelers (slight shorter and cheaper) from Opentip (2.5" tall).
The Cabinethardware.com ones are 3" tall and we use those for the back legs.

The little rubber chair protectors you buy at home depot for $4-$6 a pack are fantastic for game play!!!!! no movement at all. But you really need to use a lift to slide them out. Its the only way to it right without hurting your floor. Spent $6k on the floors. and goofed a small part up because I didnt have a $150 on a lift. (cheap dumbo)

Safe yourself the effort. https://www.harborfreight.com/500-lb-capacity-hydraulic-table-cart-60730.html

the nylon bottom leg levelers work really well. they are middle ground in that you can move the game (slide it), but it's not too slippery that it makes for bad game play.