I liked the full lane sign it's clear. On the other signs....if you don't know the ones in your state you need to brush up or get off the road until you do....for your safety and everyone elses. If there are so many you can't read them...may be a slower speed would help. It's always possible that a new prescription is necessary.....my eye sight is not the greatest... I'd check that first if I start missing signs! Just some tips...oh and always look ahead as far as possible.....if that doesn't work...repeat previous.
But seriously, I do agree that signs should be clear and concise!