why does straightness come in so late ?
I'm viewing this as I ride my youngster- should have put that in eventually.
Straightness for me is not only straight whole school, its about the horse being able to balance itself without me holding it up with my legs, and using my legs to make sure it goes correctly.
I do a LOT of school figures, we very rarely go whole school unless we're lengthening the trot some.
So, I work on everything else, get the impulsion from behind, contact and connection from my seat, and reins, collect her from behind and then, once we've achieved that, straightness and her balancing herself, should come fairly naturally.
I know you're more jumper, and maybe you'd put straightness further up (who wants to jump sideways ;D) but for basic warmup, and riding dressage, that's the order in which I would put it from my own experiences.