It is interesting because my base system of Pai Lum contains a mixture of Hawain Kempo, Goju-Ryu Karate, Hung Gar, Shaolin, Seven Star Mantis, and god knows what else. Pretty much anything Dan Pai learned he incorporated into the system as did his senior students, most of which were already accomplished martial artists. My teacher's teacher was an accompished Judoka.
And ironically enough, with all that mixture and mismatch, when done correctly it looks like pretty much all other martial arts.
"The hero and the coward both feel the same thing, but the hero projects his fear onto his opponent while the coward runs. 'Fear'. It's the same thing, but it's what you do with it that matters". -Cus D'Amato