Thanks guys. Interesting how we are all different, and I have no problem being a lab rat in that respect.
Here are some things I've tried:
- Tried injecting 1mm in multiple spots and had no issues in quads or belly subQ. I could feel a little bump for a while in the belly, probably due to 1mm being a lot of liquid, but no pain.
- Tried 2mm dose one day (2 separate 1mm injections - 1 in each quad) - and seemed to feel more of an energy boost that day. (Not sure if placebo effect though).
- Tried a week of daily 1mm shots for a week. Felt pretty good all week. (Not sure if placebo, and plus so many other things are in play, how can you really isolate?)
- Never noticed any smell or changes in body odor.
FWIW, YMMV, and all that. 
I'll likely continue with probably near-daily injections of 1mm, since I believe in the ingredients. But after a couple months (after I've lost some more body fat) I'm likely going to taper off and stop and see if I notice any difference.