This may not help you but for me , I never use a chip shot up hill I use pitch with full backspin, unless I am pinching a bit of distance, then no or minimal backspin. Anything over 30 m I use full shot rather than pitch, chip or flop. The problem for me comes from second cut rough , short distance on anything more than fast green. To control the ball then I purposely miss the ding short, usually still with a pitch. I have tried to perfect using pitch , but still have a lot to learn with flops, and bit to learn with chips.
I just watched the above video , it was really informative, it’s the first tuition video I have ever watched , no wonder I am a rubbish player ! Lol