Richard - the stock ones are best described as" pushers of Muck" - I replaced mine with parts of better blades the thresd is
http://www.talkmorgan.com/ubbthreads.php/ubb/showflat/Number/308034/Searchpage/1/Main/20472/Words/wiper+blades/Search/true/Re:_Wiper_blade_replacements#Post308034
This is the search topic you can go to search and enter wiper blades in the topic and robbie in the person field - you'll see what was done -- the resultant blades actually now wipe the screen!!!
Cheers!
