Number are great for aslong as you can read them.
My problem with the clamp was that it wouldn’t stop the post dropping when used with a ragley post in a ragley frame. I was progressively tightening it over a few rides and although the seat was still dropping tt broke last winter (3rd ride). When it was about -6.
The bad part about it was there was only about 3mm square of material where it broke. The casting was poor and the machining inaccurate which didn’t help but this part was designed too thin.
Now using as Onone bolt clamp I took of an old frame and have an allen key in my pocket.