R.H 5 The clamp well constructed, but it only applies pressure to the outer edge of the reservoir attachment at 2 points. This allows the pressure in the reservoir to lift the attachment on the sides that are not directly under the the clamp and releasing brake fluid. Part of the problem is that the o-ring used on the attachment H1 ABX 70 is too large for the NSX reservoir. The clamp needs to apply pressure to at least 4 points 90deg apart.