I guess I've gotten exited too quick, but this rubber strap makes all the difference. Now it is a "sports watch". I do not understand why it is so difficult to adjust the metal attachment and make it suitable for RM5, just like Riley said. In any event, there is not much wobble, once you put the watch on the wrist. I will take my chances, and keep you posted. I now realize exitement from RM10 and RM11 owners.
Thanks Adi.