I have a type1 RMR06 I purchased right when the type2 came out. It has the auto-brightness feature.
I just picked up a 2nd RMR, type 2.

Both have 3.25moa dots.

Ive never had issues, and carried the type1 with confidence on auto-adjust mode.
The type2 does not auto-adjust as bright.

I never understood the hesitation for auto-adjust as my type1 was always at the optimal setting and only washed out when in a dark area pointed directly at a lightbulb. However, the type2 washes out more frequently, and I now set it at the midpoint.

Any idea why the difference? Im in the middle of competitions and dont want to change batteries- could that be the cause?

Below is a side-by-side.

RMR Type1


Type2