He's is getting really good with bending , except to the right (only at one end of the arena)...other than that he's basically a pro ;) but you definitely have to ride through it all.
I've also found to encourage him to pick up the left lead you need to lift your left hand and ask with your inside leg and not really the outside leg.
We also started to ask him for lead changes today...he swapped the front! Progress! :)
THis is from tuesday, look at his cute little knees! Ignore my leg tho :$