Anti-Vibration Technology

[Toolmaker51]

Dammit. More stuff I didn't know I needed.

Like it? Same effect by hollowing out a boring bar [even shopmade] somewhat [a tapered hole is even better] then drill and tap end for big set screw or pipe plug. Fill with small lead shot [not molten] and thin grease. Tighten plug and top off repeatedly, until you don't get any more compression. Some guys put in a little vent hole, plugged by grub screw. Another expedient is to lube the ways heavily.

Voila. No, it might not get feed rate demonstrated, but isn't many hundreds of dollars apiece either. Also C1045 is among highest machinability rating, they don't mention spindle bearings or other conditions.
Videos with excess show-boating like the intro, always peak my suspicion meter.