I haven't tried that miller's forge slicker but I love my double sided artero for dogs who aren't a fan of brushing. It has a harder bristled side for knots and a softer side for general brushing. It's also flexible which seems to really be helpful for troublesome dogs and the bristles are longer for longer haired dogs (though not as long as some long haired slickers)

Amazon link: ARTERO Double Flexible Slicker (Medium) https://www.amazon.com/dp/B00Q78R7G4/ref=cm_sw_r_apan_i_KYD6WRR9X6RKZFM2FEGC