Oh, this is clever. I had thought about doing something like this, but was going to use thicker steel plates. Taking advantage of the flex to anchor it never occurred to me. Brilliant.Cheese said:So I fabricated a couple of 20 mm aluminum dogs and attached them to some 16 ga stainless sheet. The stainless is still flexible enough that when you apply vacuum, the stainless flexes and splays the aluminum dogs outward thus gripping/wedging them into the dog holes of the MFT style top.