Hope your trainer gets better Almond Joy. But that's cool that your other trainer and you work well together and were able to solve some problems! If the new trainer does better work and helps solve problems, I'd say go with the new one!
I've been trying incorporating some dressage movements into my riding recently and am starting off small with Honey. I can now turn her on a dime just using my legs, the calf of my legs not my feet. I rarely touched my reins the entire time I rode I was so happy! My trainer came down to watch me ride for a bit and told me I shouldn't let Honey get away with turning by herself and changing directions. I laughed and told him what I was doing and he was impressed. I was really happy that I'm able to conceal my leg cues enough that it doesn't look like I'm even cueing her! I'm going to try and start working on flying lead changes and try to do those better. My goal is to be able to completely drive her from my seat and be able to get her more sensitive to my cues so that way all my cues are concealed.