Help for deck originally done in Glidden Smoked Pearl

I need help with a deck that was built 15 years ago and has always been stained with Glidden Smoke Pearl Endurance deck stain (semi transparent). The deck needed to be done last year but due tot he fact that I could not find a match for the Glidden stain I put the project on hold. The deck is in bad need of staining so have decided to jump in and get the job done. I would like to stay with the smoked pearl color as a match if possible. I am told I may be able to find a FLOOD match. Should I go that route or start all over with something better?

Also if i need to strip what is the best way. Husband is using a pressure washer now.

Deck is in NH
Full sun in summer, full snow and ice in winter
Pressure treated pine
Minor mold use only in a darker area under seat. Calling it mold (it is green)
Need to re-stain because the stain is chipping and faded. It was not prepped very well prior to last staining.