Not only does fat impose a static load you have to carry around, it also cause more friction between muscle fibers, making the contraction more energy - costly. (strengthsensei.com)
And this doesn't result in a seized engine or short engine life caused by way more friction in the parts than they were designed for? (mechanics.stackexchange.com)
I'm going to try a small piece of candle instead of the washer, which will create more friction between it and the cotton reel. (science-sparks.com)