This may be my silliest question yet ...

I've seen a lot of really good, full-body pictures of locks that people have obviously taken by pulling the tub out to get the picture. I'd like to photograph my locks like that to have a record of breedings (like Albey does - http://www.albeysreptiles.com/balls_a_list.htm ). However, I'm always paranoid that pulling open the tub too far to get a good picture will disturb them.

Do y'all find that they sometimes will "unlock" if you pull the tub all the way out to snap a pic, or are they too deep in the zone?