There is always some pause at the top of the stroke, just not excessive. Maybe 1 - 2 seconds between strokes.Personally, I would readjust the piston, and learn to pump slower. You're losing velocity by having that much headspace.
You can either file down the inside of that bump at the slot, where the air get sucked in. Another option is give it a breather hole like a Benji or Dan. Or just punk slowly and problems solved.
Quote from: Rob112o on January 21, 2018, 04:57:25 PMYou can either file down the inside of that bump at the slot, where the air get sucked in. Another option is give it a breather hole like a Benji or Dan. Or just punk slowly and problems solved.That's what I would do, but, I hesitate to advise others to do that. I'm always afraid of them possibly going too far, and buggering something. Then, it's MY fault for suggesting it. But, that's just me.