Why do posters still worry about his body language and kicking. Second or third order issues with a talent like Jesse. Mostly he is crook on himself and so long as he is steady and balanced in the last two steps before he kicks it doesn't matter how he gets there. In any event, it is the drop of the ball that matters more.
Watch his awareness of his position on the ground and his willingness to look for and often find good options to deliver. If handled correctly and coached appropriately he will become a great moving forward playing around CHF. The mistaken impression of Jesse is that he is expected to be a big, tough, strong marking forward operating from the goal square. Even the great David Neitz struggled in this role. His greatest strength was his leading and the ability to kick long goals. Jesse's greatest strength will be his ability to move around, win the ball and bring others into the game. His football smarts are exceptional.
Give him space and time to develop and find someone to play the third tall from to support the Weid in the goal square. I like AVB who could play as the mobile third tall as Martin Pike played to support Garry Lyon and David Schwarz in 1994.