Any porous curlies out there have long term success with poo bars?

I started using shampoo bars about two weeks ago and my hair absolutely loves them. I do have a water softener and I do follow with a weak acv rinse.

About one week ago I started doing research on poo bars and it sounds like using them is not good news for porous curlies. I would really hate to lose my length due to any possible damage, it's taken me sooo long to grow!

Any thoughts?
dense, very fine, high porosity, poor elasticity
Loves Protein
No heat styling