Bra strap? I have enough trouble with my watch strap. Crikey! The next thing they'll want is for us to find their clitoris. Why they keep misplacing it I don't know.
not to boat or anything but I'm pretty good at removing bra's. I can even undo and redo the clip it without the woman noticing sometimes. I'm also good at unzipping/buttoning tops without being noticed (never strangers though in case you all think I'm somekind of pervert ;)).
I prefer the front mounted clips. Far more visually appealing when the boobs bounce out.