Filed and deburred the C607 and 609. Finished the C712 angles. Bolted the 607 and 609 to the 712 angles only to realze that I should have left the bump out on the 607 handle. The instructions clearly say that one section should stick out from the 712 0.32". Crap, I will order another one. I am going to hold off drilling the 712's to the skin until the new 607 comes in. Other than that is fits nice.