I just updated the OP with some recent pics comparing a green-glowing A2 and an orange-glowing one.
The orange is a bit dimmer than the green, but I can still see both of them *easily* from across my room. The first pic (left) is as close as "real life" as I could get the pic to show up, although the effect may seem different depending on your monitor, etc. The glow you see towards the bottom of the pic is the reflection of the tritium on the table the A2's were on.
Also, on the second pic (to the left, showing the bare A2 LED rings), notice how the trit glows through the LED's dome (look for the glow a bit under the trit vials) - that's what makes this mod possible. Purrdy cool, if you ask me.