I've never had one higher than about 35, when using things like rope seals and 5/16 ring packs, but don't know what would be considered too high. I've also seen where others are much lower, so this one isn't exactly low but not as high as some either.
It's not a critical measurement, just something I check for giggles. Paul could better answer your question as I'm sure he may not only check this, but probably checks things like piston pull during assembly.
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