Resolved Question

sub = submissive in bondage
switch = both submissive and dominant in bondage

You know, there's a difference between topping/bottoming and Domming/subbing. Top/Bottom is about the physical side; Dom/sub is about mental play, emotions, mind sets. If you are more focussed on the physical side of things, you don't need to worry about dom/sub dynamics. And if you are a normal, empathic person, you will probably enjoy topping as much as bottoming, because you can understand that your bottom is enjoying those sensations as much as you would in their place.

I always say; "Bottoms switch the minute they find out they can; Tops switch every chance they get."