2011 335D tire pressure discrepancy?

I've got a sport package with 18" wheels and there is a discrepancy on the stickers on my door with regards to tire pressure specs. The white sticker indicates PSI of 35/42 front /rear. The small yellow sticker below it indicates, "for speeds up to 100 mph", 42/51. It seems to me that the yellow sticker might be incorrect since the manual also states 35/42. All my tires are low( significantly so) compared to the white sticker, so I don't know which one to top off to. Searching the forum many guys are going with 36/36.

Thoughts/ suggestions?

Thanks,

Dave