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?
very fine/dense/high porosity
No heat styling