Please don’t get me wrong with this as all said is great information however there is something else that you can do. On the surface when laying back to kick your way to the boat loosen the BC to prevent the excess squeeze. Additionally when you rent any gear always take your time and ensure it is correct for you. The ocean will be there when you are ready.
When I first read this I also felt that I should say something about the squeeze that you felt. While I am glad that all worked out for you this could be a sign of something physical. You informed your buddy and got assistance which is great. For extra buoyancy please don’t forget lead is cheap. Loose it and dive another day.
My .02cf worth
Best Fishes!!!