Just had the same problem with my XL600.
Headlight dipping the wrong way.

Got a beam bender sticker from amazon.co.uk:

Eurolite Left Hand Drive Headlight Beam Converters For Driving In UK

http://www.amazon.co.uk/exec/obidos/..._ya_oh_product

about $30. Just needed to trim it to the right size,
and passed the WOF easy.