I own a Bald Eagle Rest (my review by clicking here) and though its very stable, I thought I'd try the Feet from Grizzly Industrial to add mass and therefore stability.
The Feet are heavy which is good.
I had a slight problem with the Feet screwing on the threaded 'legs' and wrote to Grizzly. Without asking they volunteered to send me three new Feet at their cost; including shipping.
Grizzly made it right immediately!! The Feet attached as they should.
My point: Grizzly Industrial provides Outstanding Customer Service!!
Grizzly sells the Bald Eagle Rests too