Cool down or warm down

Hey I always warm up and warm down with a cloth with warm water wrapped around my penis for 5 minutes. However I was recently reading somebody who gained an inch in 4 months logs and saw he warmed up with a cloth but instead of warming down he took a cold shower “cool down” for 5 minutes. What are the differences between the 2, and what would you guys recommend?

I don’t think anyone can answer this question with much certainty. While I believe warming up and warming down/cooling down are important because they help prevent injuries, I doubt they directly have much to do with making gains.

Experiment and find what works.