re-staining faded deck

Hi,

I live in Arkansas and have an oak deck that receives full sun. No mold or mildew issues. Two summers ago we expanded the existing deck. Last summer we used the restore a deck cleaner and brightner, followed by one coat of TWP 1500 rustic stain, on both the old and the new wood. The results were great. However, the wood has absorbed a lot of the stain, and the deck looks faded. What steps do you recommend taking to add another coat? Do I need to clean again, and then re-stain, or will power washing be good enough? Also, would you recommend more than 1 coat this time? If so, should it be wet on wet, or wait for the first coat to dry and come back and stain again?

Thanks so much!