I used a correction bit to get him to soften to the pressure. Then switched back to the western copper roller snaffle. I train him according to my body position instead of bit pressure. But I was definitely putting too much emphasis riding in the bit instead of my body position and leg pressure this time. That's me being out of practice lately:(
I got the best results after a week of riding him in my close contact english saddle. Then we went back to the western saddle and I couldn't believe the difference ! Maybe I should try that again because he was so responsive.
I was wondering if maybe I need to try a lifter bit or a sweet 6 martha josey to encourage the lift in his shoulder. However I don't want to rely on a bit to fix issues.
He also does need his teeth filed a little. But the vet said there's no rush on it or anything.