Not all wool carpet is the same though; some have thin top soil wool that comes off little by little or huge great big balls of wool that you could probably make a wig out of!
The problem with mine is that it produces small amounts of wool when a delicate brush bar is used on it in terms of digging deeper into the carpet. This is effectively why I bought a SEBO SM2 / equivalent G1 upright with manual height adjustment. Everything I can see is picked up at setting 3 or 4; same with my SEBO Felix.
The X1 sensor is also good as it cleans gently as opposed to thorough and deep down., or will go threadbare the moment an aggressive brush roll is used. Note I haven't even mentioned beater bars. Beater bars in my experience aren't half as damaging as a stiff tufted bristle bar.
Turbo brushes are also less damaging, so they can also be used on my carpets.
