The Troubles with Braces

The braces I have been using are RGO braces which mean that they not only brace the legs but the hips. Once standing you can lock the braces by tilting the hips forward and unlock the braces by moving them to an unlocked mode and moving the hips forward again. There is a lot of hardware above the hips doing a fair number of complex things. The thing I have discovered over the past month or two is that none of it is reliable.
    The first problem I ran into (ignoring a lot of adjustment when I first got the unit) was when I went to sit down at Pushing Boundaries. The action was not gentle but neither was it that violent. There was a crack on my right leg and I found that the two screws holding the metal support to the plastic molded to my leg had pulled out - one leaving a smooth hole and the other cracking the plastic. The braces went back to the orthotist who, fortunately, had gotten the mold used to make the plastic piece from the factory. She was able to rebuild the plastic pieces holding my lower lag with thicker and sturdier plastic.
    The next week I went back to Pushing Boundaries. Jerry, the therapist who was there when the braces first broke was more careful. We inspected the braces carefully and he took care that the Velcro straps holding the braces to the leg were especially tight. This was a mistake as the thin wire loop holding the Velcro pulled out forcing us to hunt down an pliers and rebend it back into shape. We then began walking around Pushing Boundaries. After a walk around the place we went to sit down Again there was a crack in the right leg as I sat and again the screws had pulled out of the right side. This time the heads had sheared off and the thicker plastic was undamaged. The braces went back to the orthotist to replace the screws and the wires all over with thicker and heavier buckles.
    Then the braces came back there was a small issue with some of the Velcro being so long the end was under the leg making it difficult to undo. Next we took the braces back east on a Thanksgiving trip to my sister's. I was able to put them on and walk for my sister. I found that the place we were staying in had a long, straight hall - perfect for practicing walking. I walked up and down the hall for a couple of days in succession until I heard a strange sound from the left side of the brace. At first I could not see the issue. Later I realized that the upper left brace was sitting a couple of millimeters off the back brace. It turns out the screws holding that piece had become stripped. So, the braces went into their bag for the rest of the trip. In addition we decided not to take the braces on the three week trip to Mexico we had planned to take later. It was back to the orthotist to replace the two small screws with three larger ones on each side.
    After we got the braces back we started practicing around the house. After a couple of days There was a noise in the right back that after much inspection was due to the fact that a screw which was part of a critical joint had largely unscrewed. Later we would discover that there is a set screw which is supposed to prevent the piece from moving and it had grown loose. I was able to fix the joint myself and my therapist tightened the set screw.
    A day or so later my therapist and I were practicing getting up using hand crutches. For a number of repeats it was working well until I got up and the braces did not lock. With assistance I sat down and we tried it again. This time I was sure that I had made the move properly and was stable but again the braces did not lock. By now the therapist and I were sure something was wrong. With some help I got down and took off the braces. We decided to go through and try to understand the locking mechanism. It was not hard to find the problem - one one side there was a spring loaded peg. On the other an empty hole. My therapist scoured the floor and found the peg, the spring and the screw which is supposed to hold the peg in. Lacking a small enough screwdriver and deciding that it was important that the unit get a thorough inspection, we taped the parts in and sent the unit back one more time to the orthotist.