i would also like to be able to rest assured that i will have visible lights during the day. mine were initially cleared, then tinted, but i made them dark both on purpose and accident. i like how they look, but the last time i got pulled over the cop expressed that they were kind of hard to see during the light and was concerned i may be rear ended. i never noticed this being the one inside the car, but who knows.
i would love if we had a good set of retrofittable LEDs to run some extremely bright bulbs with extremely dark tails.