Instead the TAMA design holds the arm with entire interior surface of the U-clamp. Cast Grip Boom Tilter. Over the years much has changed, but one thing hasn't - Mannys is still the best advice you can give a musician.
I have used 100s of Mic stands. I was so impressed with the licking mechanism for the boom that I bought these for my school. I also own this one and the studio version.
I don't understand why people are using K&M and other cheap / over priced - expensive brands when you can get this quality for this price. I am expecting these to last for decadeS