I loved the Slaughter for many seasons, it reminded me of a fully rockered (reverse camber) ski; very loose and surfy when ridden flat, but tons of grip when leaned over on edge. After a hiatus from semis, mostly due to unavailability of good options, I now have a Minion SS 2.5 on my hardtail in a DH casing.
Its still a fun tire, but for where I ride (dry, rocky, dusty) I think the MaxxGrip compound ruins a lot of the good qualities of a semi. Its not as loose when running it "bases flat" as I'd like. I love the feeling of initiating a drift effortlessly in conditions that reward it. That same tire in a Double Down/Dual compound would be my holy grail.