I had a customer that wanted a very scrubby brush so I suggest an Omega 10005 or 11137.
They received a 11137 but wanted something harsher, so I sent them cheap wooden handle model I had lying around. This model had definitely been shaped by a blade or shears & felt very rough. I never heard back from them so I can only assume they liked it. Some cheaper brushes tend to be shaped / finished with a blade (i.e. Wilkinson boar) not to my taste but someone must like them & you can make more brushes if you cut the bristles in half.
I wouldn't recommend this, your best off trading the brush & finding one with a shorter loft. Boar hair is & I can imagine badger hair would be very harsh when cut.