I think if you take it slowly and work at it long enough it will come. The time to get it up to speed will differ for eveyone, of course. For me, it takes a lot of repetition, and then, eventually, muscle memory does the work.
Here's my humble attempt....
https://www.youtube.com/watch?v=IVQP...kKsMLSCig5CmrT
I think it's a fabulous vintage Kottke tune.