looking at getting a gps mount for the bike, i like the techmount, it looks very well built. If i get a techmount though, how does the gps bolt up to it. Do they also sell a cradle that will bolt to the flat surface of the techmount. I would rather not just slap some velcro to the back of the gps and stick it on there, i want something more secure. I'm talkin about the stem mounts