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With M&F it can be gel soft or slightly scritchy IME. Nice backbone one way or the other, which is necessary in a brush AFAIC. I hope yours works well for you.

Similar but I think the chubby Simpsons have less curve than your M&F. Yours is reminiscent of a Simpson M7 to my eye, but not quite. Handsome brush one way or the other. Here is a pic of a chubby...