As anyone knows compression rings are much better than just screws (a) because the grip better and (b) because they don't mark diagoanls and when you have a heavy diagonal worth a little this is important.
Therefore I have never liked the cheap Skywatcher fitting on the ED72, see first photo.
I googled Youtubes content for adaptors, and found this.
From First Light Optics (UK) sorry, they do post abroad, perfect, and holds my Baader 2" diagonal and 2" eyepieces exceedingly firmly, it is also very well made and finished
https://www.firstlightoptics.com/ada...star-72ed.html