Pat Beatty and Fritz Johl designed a number of sailplanes in South Africa in the 1960s-80s. They tried the pylon mounted wing with their BJ-5.

http://avcom.co.za/phpBB3/viewtopic....15852&start=15

There is a pic of the BJ-5 in the link. They reverted back to a high-shoulder mounted wing for later designs.

Clinton