spent the afternoon "modernizing" a spare set of s5 tails I have.
here's a nice comparison...
removed diffusors from behind the lens
after putting the first light back together I realized I should have kept that black piece in there as to not show the tag light. So I had to re-open the light and reinstall the black piece, argh, lol. Live n learn. The effort was well worth the reward.
BTW: I have a set of s5 lights for sale now if anyones interested.