Does anyone have a sticker sheet for bearing stinger laying around that they can scan for me?

Did you check here? https://worldbeyblade.org/Thread-Sticker-Sheets-Scans

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Click here and all will be revealed

Spoiler (Click to View)

all

This may not be anime accurate...
Why was Shu happy?

Spoiler (Click to View)

Because Wakiya 4 glaive (forgave) him.