I also have the proxima squat stands. That was the first piece of real equipment I bought for my home gym years ago. At the time I bought them I paid 135.00 plus shipping.
They are fantastic and don't take up a ton of room. I have them at the front of my O/Lift platform and just pick up the weight and step back onto the platform. I have dumped many times. I also use bumper plates when squatting so I don't even think about it.
As has been said learning to dump is a great technique to have. I think Greg wrote about it in a PM coaching article. I will look later.
What we think, or what we know, or what we believe, is in the end, of little consequence. The only thing of consequence is what we do. -John Ruskin