I fitted these as well (without drilling an additional hole

) and have the same problem with the end of the wiper going over the bottom edge of the screen. The only solutions I think there are:
Shorten the length of the wiper blade on that side (which will reduce the swept area of the blade)
Alter the wheel boxes so they have less travel (a smaller degree sweep). Again that would reduce the swept area of the blade.
Find a longer wiper arm. The risk here is that it may then hit the screen edge at the top.
The most elegant solution would be the wheel boxes. Not a huge job but a bit of a faff.
I decided to live with the 'over sweep'. It only happens when it's raining, and I can't see if from the inside
