Nifty,
You haven't commented once yet on the "non ghosting" stuff a few people have brought up.
You do know what we're talking about right?
It's essentially when "phantom" voltage is going through the light matrix and causing LED's to light up (when they otherwise should not) due to the lower resistance than a regular bulb.
If it were me, I would stock ONLY Non-ghosting/Premium LED's as they call them
(I would imagine it's just a little change in resistor at the manufacturing level).