An approach I'm working on (i.e., trying to learn well enough to put into practice) is to convert watersprouts to fruiting wood by removing them, and then following up as soon as new growth reappears and then pruning back to three leaves Repeat as necessary, which appears to be a lot. Eventually fruiting spurs are supposed to appear.
As Bradybb says above, some of them can be bent over. I think Alan bends them forward, and then grafts to them and later removes the limb from which they grew. I wonder whether it might be worthwhile trying to train some of them into horizontal fingers if they are caught before they're too stout.
But Clark is making a huge point which others have brought up: fruiting forces trees to put their energy into fruit instead of vegetation, and certain things, such as bending limbs to horizontal early, encourages fruiting. Very early fruiting can actually stunt a tree. Here's Clark's words from his earlier post, which he links above:
Many pear growers are locked in a battle with a pear tree that will never result in fruit. Instead of topping pear trees try to gradually bend the branches as they grow. In the end if you bought a standard pear tree it will get tall. The best way to keep a pear short is by producing lots of fruit and not by pruning.<<
I think it's well worth rereading the threads Clark links to above- a lot of good discussion going on there.