Counter Sinking Motor Mount Fastener Holes

Today I spent some time completing the countersinks for the motor mount fasteners. I was careful to clamp each set of holes and left the shims and motor mount in place. The shims and the clamps helped keep things from moving so I could get nice countersinks. After completing the countersinks I up drilled the holes to 1/4 inch for the fasteners. I had sized the fasteners to get the correct grip but I discovered that the fasteners for the two bottom holes were actually too long and interfered with the tubes for the gear legs. I’ll have to pick a new fastener length for these.