We know we all struggle to make fluid those odd multi-note florid passages in Chopin which tend to go on forever. Instead of using the heavier dotted-note rhythms to make such passages even, try stopping on every note in the sequence instead.
For example - if the passage is 16 notes long, then stop on note 2, 3, 4, 5, 6, 7, 8, etc. 16. This allows you to explore the in and outs of the keyboard and naturally molds your hand shape to the unique shape of the passage, making the figures easier to shape over the underlying harmony later on.
