I learned from Allen S. Haley's Blog "->Anglican Curmudgeon" that Charles Hamilton (1914–1996) in his book "In Search of Shakespeare" (1985) fashioned a "handwriting" composition by alternating lines from "Hand-D" with lines from Shake-speare's "will". (yellow).
Hamilton concluded ("beyond any reasonable doubts"), that both hands resulted from the same author. S.Faksimile)
Be aware, that
a) 1 month prior to his death 1616 Shakspere together with Jonson and Drayton "...had a Merry Meeting and, Itt Seems, drank Too Hard for Shakespear died of a feavour there contracted."
Some further examples? :It would immediately explain why Draytons "->A Paean Triumphall" (1604 - he wrote on the occasion of the inthronisation of the new king James) bears the emblem of Marlowe's "Hero and Leander" (registered 1593) appearing nowhere else..Why?...What about all of Drayton poems on "->Gaveston" (1593/94) and so on......
It is better to debate a question (without settling it?) than to settle a question without debating it.