Hi there,
This is a trove of feedback I really appreciate it my pal. My trello board is looking nice a fleshed out as a result.
Grace time is a great idea and has reminded me that the player doesn't have it when even jumping let alone landing so I'll be sure to look at both.
The rehearsal idea is VERY nice, it'd be a sin not to use it at some point.
Cheers,
Jack