If you're a fan of the A2P tone, A2 Stormy Mondays just do it better :D I haven't tried SMs in an LP, but they sound amazing in my superstrat. I always recommend Mules in LPs, though, because when I had mine, the Mules sounded soooo good. I've been trying to recapture that tone after selling my LP, to no avail :D Mules have no problem whatsoever with sustain, and a nice fat, beefy but articulate, tone.