When to sink rail

I've been a long time reader on this forum, though I tend to forget my password to reply.
I've been surfing for 8 years, and self taught. It's good, but could be difficult. I'm currently relearning and fixing some of my errors I've started with. Mostly, foot placement and rear weight and rail control. Anyway...
When you take off, and want to do a nice bottom turn, WHEN are you sinking the rail? Mostly, which method is faster? I sink rail when I want to power down the line but I wanted to know what others thought. I appreciate the replies.
I've been surfing for 8 years, and self taught. It's good, but could be difficult. I'm currently relearning and fixing some of my errors I've started with. Mostly, foot placement and rear weight and rail control. Anyway...
When you take off, and want to do a nice bottom turn, WHEN are you sinking the rail? Mostly, which method is faster? I sink rail when I want to power down the line but I wanted to know what others thought. I appreciate the replies.