Hi Andy! I think I’ve gotten what was holding me back! it was in the initial note. it always sounded, well, like crap, compared to the original - it was really “flat” so to speak. So I re-visited it and tried to understand the difference and experiment, and I finally got it - apart from the hands opening up for the initial “whaaa”, I found doing it in combination with a toungue slap thing made it sound much closer to the original, and now playing the first 3 notes in a really “springy” way, with as much tongue slapping as possible is what was the “secret”