lazylathe
Almost there...
The only time I had a bleed through on cheapo parchment paper was when I added about 1000psi extra than normal/advised just to see what happened, I wonder why you are having so much trouble, 4x layers is a lot of wasted paper, (I am pretty sure I have only ever used a single sheet).
I only have the 6 ton DabPress, so no guage.
Also was only able to buy cheap parchment that almost disintegrates when using a single sheet just by itself.
With the addition of the extra layer, the cheap paper works like a dream in single layers.