I dont like either personally. specially for hyperloops and orbitabls. Too chucky against themselves. The sound is horrible...
I own ball chains, welded links, braided wire, string etc. I didnt like any of them too much, so i started making my own with special traits. Ranging from super flexible, to super smooth with mid range inbetween. After using the ones i made, ill never go back, and neither will the many others who own them now.
anything thats not welded does have a lifespan, but ball chains are some of the weakest. The welded twist are good, and strong, but far too common and really chunky. everyone and their grandma has these chains. So im trying to change that with a wider selcetion of poi chains, practice heads, and counterweights.
Feel free to check em out @
www.facebook.com/ProPoi <---hand made chain maille by yours truley.
but out of the two choices you gave, welded twists would be best, especially for heavier heads.