I've only grown them once because they take up a lot of space for such a small crop.
I didn't bother to cut off the male flower at all, I got around 4 to 6 baby corns per plant and I removed them the same way I do normal size cobs, just give them a sharp downward tug while holding the stem steady with your other hand. The taste was good but as I said, it's a lot of effort for not much reward.
I'm hoping that one day I'll be able to get hold of some "Chires Baby Sweetcorn", this is a variety grown in the USA and it's supposed to produce up to 50 cobs per plant, can't find a supplier over here though :'(
