I've am wearing my G-Shock Mudman GW-9010 for a couple of years now. The one thing that bothered me at the beginning was the long strap (I have a very small wrist). After I cut the strap to the desired lenght, the strap was always "falling out" because the strap holder kept sliding up. So I decided to make a little modification and the problem stopped. I've been wearing the watch like this for a long time and decided to share this idead with you (i do not know if it is new or old ).
Basically, all it is that I soldered a little rigid wire thought the end holes of the strap. See the pictures, they are self-explanatory. Hope this helps someone.
Otherwise, very happy with the watch. It survived scorching heat and extreme cold, mud, dirt, water, oil, etc ... it a beater and it still keeps working.