Dear Soup,
My sense is that you have been struggling for a while now with a feeling that it might be time to leave (at least for now) either this therapist or therapy itself. Again ... perhaps only to give things a break and take it up again later.
This new therapist you've made contact with sounds like a possibly good fit with you. The cognitive thing would be an interesting change. The process proposed sounds reasoned. You seem to be leaning toward this. Your T though will be against this, am I right? Wanting to "slow down".
It's only my opinion, but you've been waltzing around this issue for long enough I think. I'm not saying to leave your T, but a consult with another therapist to get another perspective on what future direction your therapy could take
for your best benefit doesn't seem to me out of line.
I'm not sure it's how hard it is to leave a T that's at issue so much as how difficult it is to risk change.
Roadie