Besides, with Der's blade, after a 4.5 hour thunder run which includes chicken and beer bets, flexing the bicep [emoji123], and waving "bye-ya, [emoji112], Der's blade gains at least 30 grams in water weight from profuse sweating.
The proper way to test if it had booster added is to take a sheet of MXP and a sheet of Nexy Karis, put the brand new, uncut rubber, just taken out of the packaging next to each other on a big sheet of paper or cardboard. Draw an outline for each rubber on the paper (or cardboard). Five days later if Karis shrinks anywhere near as much as MXP, it probably has been boosted. If it is pretty close to the same size it was just after being taken out of the packaging, it probably has not been boosted too much.
But no matter what, the glues they use in the factories to attach the topsheet to the sponge have VOCs in them. So most rubbers, even Mark V and Sriver will shrink a tiny bit after being taken out of the packaging and left in the open air for a few days.
Sent from The Subterranean Workshop by Telepathy