My suggestion after watching throws was: When he's practicing free throw, they should put 3 scarecrows at each side of the key lines. Make it harder for him in the practice.
That or hook shot or backwards. If you're not going to make the basket, at least make it entertaining to watch. Or get really good at bouncing it off the rim, back to yourself.
He didnt use the same form he used in the preseason. He had a higher arc in the preseason, then he reverted back to his flick at the rim shot.
I think the whole team needs to improve their free throw shooting. The playoffs can be won or lost with those freebies.
Early on he was just "throwing" them up almost carelessly. That really irritated me. At least try. Latter he seemed to be more focused. He is just a wretched free throw shooter, and that is a killer in close games and the playoffs. Should be able to teach almost anyone how to shoot free throws.