Richardb, you are right. Learning the etude in 3 note chords first speeds up memorizing process and helps find out the most convenient hand positions to execute each arpeggio.
Hi Natsu,thank you for your feedback, highly appreciated! My piano is a digital, but probably already pretty worn out since I have been using it hard for more than 1.5 yrs. I will definitely give your suggestions a try and see how I like them.
1- pedal - It felt a bit ham-handed.