Diamond 1 piece slates,is sagging/divots a myth?

[SBC]

Hello,I just wanted to ask everyone what they think. I have been reading a lot of what I'm not sure or not is misinformation about how I should stay away from 1 piece slates due to supposed unfixable sagging of the slate that happens as opposed to 3 piece. But I've also seen many ppl saying they want 1 piece because its the best.

So which 1 would you choose?

The other question I have is when someone buys a used diamond tournament table do they ship it with felt still glued on? Thanks everyone

opinions are welcome,not just those that are experts.

I have 7 diamonds at my pool hall the past 5 years. These are the best engineered tables made. They do not sag or go out of level. They are set on a tabletop of heavy plywood with adjustable shims. The cabinets are built to hold 4 times the weight of the slate. I don't think they will ever sag.