Tapered piers are much more resistant to ringing than straight piers.
A tapered X-pier would have much better thermal characteristics than a round, triangular or squared tubular pier.
Adding sand, oiled-sand, sawdust, etc. to a ringing pier will not stop the ringing. Only filling with concrete will do that.
Up until the appearance of "affordable," commercially-available, amateur telescopes and mounts in the 50's and 60's with cheap, straight, round tubular piers, all serious telescopes, both professional and amateur, had tapered piers.
Any decent machine shop can make you an excellent tapered X-pier from standard plate steel or plate aluminum stock.
Tapered X-piers also are more convenient for cable management and for adding shelves, etc.
Drilling holes in them will also slightly improve their thermal characteristics and shorten their cool-down times.
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