i see you also have grado 80s
the biggest compatiblity problem seems to be the size of the cable
1/4 jacks have a large cable but most 3.5mm are just the wires or thin cable
so 3.5mm plugs don't ususually have a large enough diameter on the cable end
i got a neutrik r angle and the large cable barely fits ... and then the wires barely fit into the plastic insert in the barrell
do switchcraft nickels or neutrik straight 3.5mm have enough room for a grado cable or do you recommend another model?