I was in the process of making some up using those drawings. There are a few dimensions that are off. double check the sides right above the section that is actually inserted. One says total length is 15 and if you add the other side it 15.75. on the part that is actually inserted on side says the total length is 14 the other side says 28. Its looks like an end point error.
I couldn't finish them cause I no longer had access to the shop.
So, Blu, i'll take two pair if you decide to stock em.
Does anyone know if this clip will work for a RC838 and a 656???