This is probably the performance by Guangzhou Troupe from Cirque Du Demain in 1984. Contains a brief run of 3 low. And a lesson in pirouette technique.
Shanghai duo who perform a neat acro piece, with the added bonus of bowls being balanced on the flier the whole time. This is possibly "Shanghai Acrobatic Troupe - Bowl Pagoda" - Cirque Du Demain 1985.
I have put together a four minute film of site swaps, mostly four and five balls, filmed around London. I am a maths teacher and the video is mainly to show my students how I spend my spare time. I have listened to their feedback. Please let me know what you think.