I also found them a bit hard to press, not as loose as the original leafs on my 720 and so I clipped the top piece of plastic and it feels great. Instead of bending the contacts up to meet the button actuator, I just glued the clipped piece onto the top actuator.
This probably doesn't make sense unless I post a picture or you have one of the leafswitches in hand.
Cheers,
KenToad