Glass bed alternative mount

I have read through the glass bed ideas and have a few reservations.

Binder clips cause the glass to warp as bad as the aluminum.
Magnets and plastic brackets may have alignment issues if placed on in a different orientation.
Heat transfer from aluminum to glass is not optimal, only a small portion of the glass comes into contact with the original bed.

Here is an idea I am going to try, hopefully someone with more experience or knowledge than me can comment on them.

My bed is warped, the center is the high point. The glass can't be reliably positioned as it teeters side to side like a see saw.
I am going to place small spacers, maybe only 0.3mm thick on each corner so the glass is resting on the spacers not the high points of the bed.
To fill in the gaps, I will use thermal compound. Thermal adhesive is also an option but you can't go back once it is attached.
With the glass resting on the spacers, and the thermal compound filling in the gaps, binder clips can now be used to pinch the glass to the bed. I will place them on or near the spacers to prevent any warping of the glass.

The glass is guaranteed not to teeter while resting on the spacers. It can be removed if needed.
Heat is evenly conducted to the glass.

Let me know what you think, I will try it out by next weekend and let you know how it goes.