When you showed pictures of your glans being tightly squeezed through a very tight opening… getting stuck like that can lead partial penile necrosis, due to continuous loss of blood flow.
I could feel that if I kept pulling back more would squish through but I freaked out as I worried that the frenulum would tear if I let it, or maybe paraphimosis would happen.
One has a circumcision style that retained inner foreskin the 'high' style whilst the other has a circumcision style that removed inner foreskin the 'low' style.