I've heard bad things about the skerton. There's too much wiggle because the crank mechanism isn't stabilised at the top. Means you get a lot of variation. Porlex is much better in this respect.
@rusty started
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I've heard bad things about the skerton. There's too much wiggle because the crank mechanism isn't stabilised at the top. Means you get a lot of variation. Porlex is much better in this respect.