Ah yeah they are pretty different, I don't think the saki is so tippy, it is a good center of gravity, especially with water loaded and it only takes a little bit potentially... Two big holes in the perc, I really like the mouthpiece, and that marble on the outside (mine has dichro) it is definitely thick, certainly thick enough that there should be no concern, with the design of the bell you can see that it has to have thick parts, personally I don't actually like that, as I said I do not like the look of that one much at all lol
You can reach out to her, by email or Instagram she is very responsive, she can tell you exactly the thickness, but it is really nice US-made glass, the piece I have is very thick and well made, much better than most China glass and even much American glass
