Thanks for the input. I suspected it was aggressive on the bottom as the videos do not show the bottom stitch...and I found that to be suspect about that type of machine. Plus, with this particular one being from China...I'll pass on it. I am not interested in supporting the Chinese market if I can avoid it. You gave me information that is important to me. Thanks.
1. I don't want my leather chewed up...
2. Buying American when possible is my first choice. Japanese would be my second. German third...Chinese last. I would rather buy used American or used Japanese over new Chinese. While some of the Chinese stuff I have purchased in the past has been fine (and this machine may be), about half the time I have been disappointed with the durability, quality, or user friendliness of Chinese equipment. Not to mention I suspect they will be owning many American banks (holding the titles to our homes) if we aren't careful about just how much of our market we continue to give them. Oops...I shouldn't open politics I suppose. LOL.
That said...how thick of leather can this used singer cylinder arm machine (used HERE)?
(UPDATE: Disregard my question about that singer in the link. I noticed the seller has zero feedback, and I am not going to send $1000 to someone with no feedback).