First of all, I think we'd better clarify what you mean by 'Deluxe'. In original GMspeak, this meant the female buckles that had the appearance of brushed stainless steel.
If that's what you mean, then yes, I've done it. No special tricks. Without one in front of me, I can't be really specific, but as best as I can recall, you just pry out on one end with a small screwdriver and it will come apart.
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Bill Pritchard
69 SS396 Convertible
"Life is short; eat dessert first." - Ogden Nash
My low tech web page