Gases compress and will return almost all the energy used to compress them. Liquids compress but very very slightly.
You fill footballs, basket balls, and soccer balls with air. You fill your tires with air.
Your rubber already has small air pockets so unless you can make them bigger with something the evaporates quickly to expand the air pockets, you probably aren't doing yourself much good and the effect will wear of quickly. Paraffin oil is so light that it will evaporate too quickly. Put some paraffin oil on your fingers and see how fast it evaporates.
Heavier oils won't evaporate fast if at all so they won't do you much good. They will ruin your rubber by filling the air pockets with nearly uncompressible oil
I wouldn't bother with boosting ESN or Butterfly sponges as their air pockets are relatively big compared to the the heavy Chinese rubbers.
I still have a bottle of speed glue I bought from colestt. I wasn't impressed. Getting more speed isn't that helpful when it comes to keeping the ball on the table unless you can always get a line of sight shot. When it comes to spin, it is the top sheet that stretches and then snaps back that adds spin. The increased speed of boosted rubber doesn't help the spin to speed ratio since it doesn't make the top sheet more springy.
One thing I have always wondered about is if it makes a difference how quickly you attach the rubber to the blade after boosting it. If you boost the sponge and let it sit too long, all the gases will evaporate because there is a lot of exposed surface as opposed to boosting and then quickly attaching the rubber to the blade so the only place for the gas to escape is around the edges.
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