i wish i knew more about violin playing. i would be interested to hear the passage with a violin and would take my tips from how it sounded from a good violinist's point. can you find one to play that passage?
I would say less arm weight that you would use in the more Romantic composers. Very little to no pedal in these passages, keep your hand very evenly positioned as you play the runs and work for as close to perfect ( ) evenness of tone--no clunkiness at all! You still have to do your dynamics so it isn't boring. I have found that if I lean a bit in the direction I'm going, I can make a crescendo while still keeping the lightness of touch. Imagine how a fortepiano would sound. Think crystal clarity. I always find that images like this help me. Good luck and have fun with this gorgeous music!Teresa