It's been a while since I've seen this question come up for discussion. So, I thought it might be worth raising again. FWIW, I started out with a 24 mm brush, but soon fell to the siren song of a 30 mm. A few years later, I switched to 28's, which has been my preferred size for past seven or eight. Recently however, I added a 25 mm to my rotation. And while I still enjoy my 28's, the 25 seems to work just as well while using less soap. (Not that I'm cheap or anything. )
Your thoughts?
Your thoughts?