Could be both Andrew. How do you clean and store them?
I only use size 1-0,0 and 1 in the 401 brushes. They are pretty good overall but develop a tiny curve after a while, it's quite predictable though and I can get months of work from one brush before retiring them to the spares jarNot tried 401s Mark. I use series 93s which are fantastic in the smaller sizes. I find that once you get above size 2 though they don’t really hold the point. What is the point and snap like on the 401s? might be worth me trying a couple of those for the larger sizes?
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