When I first see a nice piece of cut glass, I always go on the look pattern and thickness of the blank, then its pick up the piece as I think you can tell a lot about the piece by how sharp the cutting is, most of the good quality pieces you can feel them cutting into your hands, not sure if I would be able to tell if acid polished or wood polished, I believe if wood polished the cutting would be sharper and the glass a brighter finished, and if acid polished the item was dipped into acid , the process would have been quicker and cheaper but acid polished items may be slightly duller and not quite as sharp, please correct me if wrong.
I see many items of inferior cut glass some maybe from the USA and much from European makers, I think most of my items are of good quality wether they came from the USA or possibly European makers
Some more of my items below include a signed Canadian Gowans and Kent Rose bowl
A Whiskey decanter
A nappy the only item that came from ebay but from the UK bought by my wife and a silver rimed bowl