GPS Express 1" B-Size Ball to 17mm Garmin (GARMIN25MM)

The ball is a good snap fit into the back of the GPS (Nuvi 595LM) and feels secure. I'm using it to mount on a motorcycle and it doesn't feel like it's going to fall off. After putting it on and off the bike many times (popping the ball in and out), the ball is wearing a bit, so I'm worried it might get loose over time. The ball connection into the GPS does also move around a bit laterally, so the GPS orientation moves downward if I hit a bump. (Note, there is a proper solid motorcycle mount available for this GPS, but it's overly complicated and expensive.)

Wasted money, since I bought the arm etc. Overall, cost me too much that in the end I used the original Garmin suction cup.