Have you tried the Faber-Castell e-motion? Very thick line due to its 1.4mm lead, but very expressive and a joy to hold in the hand.
mechanicalpencils
A community for those who appreciate a high quality writing utensil.
you should look into the Uni Alpha Gel Switch; it's a good choice for long writing sessions. it has of course the alpha gel grip which is very squidhy, and you have the choice between a stable hold mode and a mode where it turns the lead for consistent print.
I would use the hold mode for your cusive and the kuru toga mode for when you need legible notes.
I personally do my long-form writing with a Uni Kuru Toga Advance Upgrade. I don’t think I could get the same writing experience from a wood pencil.
I've tried an Uni Kuru Toga (probably a more basic model), but could into it beyond as a novelty. I feel like the tip rotation doesn't always engage the same way, and I end up missing the finer control I get from a fixed lead (mech pencil or otherwise).
I'm curious if you print your letters individually when writing long-form? I wonder if that's the major difference in our experiences.
I have a very messy combination of printed and running writing that no one can read, including me.