me too, but the megs one is REALLY soft, though the bristles feel "firm" to the hand, to a wheel, they are soft, i'm impressed my the megs one to be honest.I've always been put off by how stiff some of the bristles can be [:S]
I personally will continue to use a dedicated sponge for the outside face and between spokes, but on the inside rim, where the finish is not as glossy and won't be seen close-up anyway, I may be prepared to use a wheel brush in between wheel-off sessions.
Perhaps a dedicated wheel mitt then, Mr L ?Used mine this morning with nothing more than a random cocktail of Zymol and Autoglym shampoo and cold water, it got rid of a hell of a lot of muck from inside my wheels. I was in a rush else I'd have used hot (ish) water. The rears, which always get much dirtier anyway, were easier and came up cleaner, thereby proving the effectiveness of alloy wheel seal (I used Metal Mate AQ on them about a year ago and never got time to do the fronts).
However, I remain slightly concerned about the bristles when going through the spokes. Normally I use a dedicated sponge on the outside of the wheel, together with the very soft brush that comes with Wonder Wheels. I personally would not use this Meg's wheel brush on a regular basis without some form of protection between the spokes, maybe just a folded sheet of corrugated plastic envelope stiffener type stuff as I go around.
Put it this way: if your wheels have a quality of finish as good as the car's paintwork, would you use this brush on the car or the wheels? [:S]