Oh yes, I forgot about the Kali, that fits very well to pipe wielding
I have heard from practitioners of Kali sticks that they originate from Chinese saber / dao forms, that the local Chinese populations used. I like those small efficient moves of Kali. The old man in the Xinyi video I link to really looks a bit Kali to me, small moves compared to my own dao forms with big sweeping, huge circling moves, usually for longer swords. But once you can use a sword, you always can replace it with other long objects if they got enough weight. And jian forms can utilize an umbrella to stab and parry, but hitting wont do much good (bad?)...