Best quilt clips for very delicate fabric?

[mcimes]

I have a DW Chameleon and bought a custom Wookie XL UQ.

There is flappy extra fabric on the Wookie and I dont see how it will get a good seal without some quilt clips. Not the like dutchware ones - something with an actual clamp kinda like this -
https://www.amazon.com/WarmShine-Awn.../dp/B078KTYQGF
or this
https://www.amazon.com/HoldEm-Polish...dp/B01MZ1JPL5/

I like the plastic ones, but am hesitant as I had the quilt made out of Membrane7 (7D fabric) which is very, very thin. I am scared the teeth may poke or tear the fabric if pulled on accidently or just wear through over time.
Anyone try these?
https://www.ebay.com/itm/32475652208...cAAOSwRSdhG-Dp
or this
https://www.ebay.com/itm/37336643761...QAAOSwPKlfv0-3

I'm not sure if a magnet would be adequate (probably depends on the strength of the magnet) or if a metal spring would be a better retention system.

what say ye about UL quilt clips for delicate fabric?