Today's question of the day; When did

Tyler Lockett OFFICIALLY change his signature to add the 16? I have seen a few EARLY renditions with the #16, rookie season mainly just Tyler Lockett. It seems like 2016 and onwards the Tyler Lockett 16 signature is solidified.. (cool to add the 16 in 16 if so) Bonus question! IF you do not wear 16 this year, does that mean we will see a signature change?! Examples attached 🙃