Height takes a very long time. That’s to say you have to be super patient because in my case it took me years to notice height changes. It had to undo my scoliosis and even untwist my entire spine, this was a long and slow process that net me real gains.
I don’t suggest holding your breath on any physical shifting result merely because it’s just not fun, it’s always best to just commit long term and try to notice your results by taking pictures.
It’s very worth it, for sure. And I’ve also experienced shifting without shifting titles in my stack from the sheer perspective shift of any new subliminal experience title