Good to hear. As for rushing, perhaps it would help to go back to cavaletti, with a small cross rail at the end, so he has to concentrate more on his approach. A lot of horses rush into fences because they either don’t know how to rely on the rider telling them “now” or have had bad experiences and just want to get over them any way they can.
It is tiresome, but sometimes going back to the very beginning and starting over is a good thing to do.
It is never the horse's fault