This analysis works best if the patterns are very popular, taken seriously, and can be run for 100+ throws.
If only the data from 'good' jugglers (100+ catches of each pattern) is considered, 645 is only 1.14 times harder than (6x,4)*.
Relative difficulty changes for pattern duration. For example, it's probably several times easier to qualify (6x,4)* than 645, but only slightly easier to run (6x,4)* for 100+ throws.
by Stephen Meschke, in response to this post 2015-11-02 02:30:52