I use a Trustfire F20 which has a deep pocket carry clip. Dimensions are smaller than your G10. It's an XR-E stock, but it makes a nice mod with an XM-L emitter swap (also see this thread). See photos with dimensions as DX, but if your order, get it from Tmart where it ships from their US Warehouse and has proved to have the "good" 14500 compatible driver. I've not done my mod yet (I botched my first attempt). It's ok even with the stock XR-E even on just a AA alkaline. Note you can also run a LifePO4 (3.0 / 3.2V cell) for higher output than AA, but safer than Li-Ion if you want.
The build quality is nice, although the clip is a bit flimsy (holding up as my EDC though). The 3 modes are nicely spaced and the memory sets in very quickly.
-Garry