Haven't tried the bj longs but I'm sure they are tops. Can't justify spending more on pipe cleaners though at the rate I use them. Almost spend as much on pipe cleaners as I do tobacco(I buy whole leaf and do my own processing) with 3 or 4 bowls a day.I don’t care for the Zen, they leave too much fluff in my pipe. I prefer the tapered BJ Long’s.
The Randys tapered cleaners are much better than Zen but not always available online I tried some cheaper 420 brand ones and the bristle kind are actually pretty good. Fairly fluffy while still having a good bristle.