Hi all. My first post here at PS forum. I've been poking around for a while and found the content very interesting & helpful. Greetings to all of you. Looking forward to future posts and exchange of ideas, opinions, etc.
Here's my question: I've had a love-hate relationship with the piano most of my life. Been away from it for a few years but I feel it calling me back. Obviously I've got some work to do to (hopefully) get back to where I was. I've been working on the Chopin Barcarolle in F# Op. 60 which I used to play 1000 years ago.

Most of it seems attainable for me with some regular work. But I'm wondering about the double note trills in it. To get this part under my fingers, would it be better to practice the notes individually and then play them together ? Or would it be more productive to practice both notes together slowly to build muscle memory and gradually increase my speed ? Also any drills you could recommend for this would be appreciated. Thanks !