|>>|| No. 27543
I have the SoundLiberty 77's and the 53's. The 77's do work for me with the smallest ear bits (they come with three sizes, I think), but if I don't get them in exactly right, they don't form a proper seal in one ear which is incredibly annoying, though I doubt it'd ever fully fall out.
I reckon you should just go for it. The 77's are fancier than the 53s, the touch controls work better and they last longer, charge wise, so I assume the updated 79's are even better. If they don't work out, you can still return them - I assume you're buying from amazon, anyway.