Hey @elykpeace it's not a defect. I check the glass to be to specification before it ships. Those M2M are designed to be used with the TopHat. So you have two glass screens holding material in the subchamber and a fine grind is not recommended. I'm sorry this isn't working for you, many folks on here make their own screens or have solutions they come up with. For all the folks that have bought the TopHats and the GonGs, there have not been any complaints other than the initial batch which did have some minor defects I was actually able to repair.Yeah I wish I could but the M2M is smallest at the tips. Widens twords the middle? So if it's close to the edge and you tap it the wrong way everything just falls into the stem . Eq buckets are loose in it and I would sand it down to fit the 22mm length but it wouldn't help much since they aren't a tight fit to begin with and the stem is wider twords the middle
Maybe it's a defect?
If you want to clean that piece out and return it, I'd be happy to refund you.