These are just the end result of using Garmin's mounting hardware for the Zumo 660 on a Sprint GT (and ST too, I believe). This location is OK, and I did use it on a 1200km road trip, but I didn't particularly like the off-centre position.
|Mount viewed from left side||Mount viewed from right side|
There are several disadvantages to this position.
Overall, I prefer centre mouning - it's been where most of my bike's GPS units have been located. So, this temporary arrangement was only until the GadgetGuy stuff arrived.