Here is the link to Brodak's props. They are the old Y&O props and if you look they are available in low pitch sizes. The props are wide, thin section and shaped tips.
CL stunt flying is sort of like our fun flying - need a good pulling prop with high efficiency and light weight. I think they are worth a try!
link fo rthe 11-4
http://www.brodak.com/catalog/detail...roduct=BH-1544
Andrew