Radio, or go-to-the-glove?

I'm one of the new guys, but I like to use hand signals, mostly because I don't want any managers or yardmasters knowing every move we make, and when we make them. I do let the right people know if I will be fouling the lead or any time it is appropriate. I have actually gotten compliments from oldheads about my hand signals, and have had a few of the old yard guys teach me some that they didn't teach us in cl. Some of the engineers I worked with didn't even know some of the signals I used. Good topic.