Lollar p90s are painfully polite and smooth. I could not stand them as it felt like they took all aggression in my playing and tossed it aside. I removed them and eventually sold the guitar they were in.
I have not tried the bareknuckle p90s as my current p90 equipped guitars have 1950s Gibsons, which frankly rock, and removal would devalue old guitars. Also, frankly, they sound awesome and I don't want to mess with them.
The lollars to me are a fine product, but probably not what you are looking for. IMO, they were more blues/jazz oriented.