Thanks for the great review and comparison! I really love the sharing of reflector and click design.
But I have some concerns:
1. MDC's lack of polarity protection worries me. I wish Gene can upgrade the design to address this issue.
2. I think the clip needs to be redesigned. Totally in the way of Mcgizmo or Zebralight SC52. The screws should not be disposed and can be seen from the tail side. And the clip should not protrude.
3. The design of the body should be refined to have better grip.
4. Malkoff should provide LED options, especially with HCRI option.
5. Battery compatibility and resulted level spaces. Now it is quite confusing since the light levels on AA and 123 batteries are different. MDC AA can use 14500 in the beginning, but not now. And even if yes, I think the light levels will be much different, which is not good in my opinion. SC52 will display the same light levels with NiMH or 14500, except the highest burst. I think I like the lowlow in MDC AA more since it is perfect for a bedside light.
6. They should have a dealer within EU.
If all these can be addressed, I think I will take one.