High speed shipped with Series wound flipper coils, so the wiring is different vs. Parallel wound coils (which came out around the time of BK2k).

I'd say the schematic is correct for series wound, the EOS is implying that it's shorting out most of the coil when it's at rest, which is correct.

Depending on which coils you ordered will determine how to proceed.

You are correct, the manual is wrong. Williams corrected this in the Pinbot manual.

Isn't what they printed correct for series wound coils, the EOS bypasses most of the coil for the power stroke then lets it there for the hold?

Attached is the pinbot one, I guess the error is the EOS should be on the non-banded side of the diode?

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No, there's only one winding on the coil. Parallel wound coils on williams came later. Bally/stern were already using them way back when so I'm not sure what Williams thought they were inventing there when they did.

Manual is incorrect (riddled with many errors). A supplement was issued with the many corrections needed:

https://www.ipdb.org/files/1176/Williams_1986_High_Speed_Amendments_and_Additions_to_the_Instruction_Manual_probable_date_Apr_2_1986.pdf

That's right. The wiring schematic is wrong. It did get corrected starting with the Pinbot manual.

Correct, the EOS switch are NC as are all high current EOS switches.

There are other mistakes that are not in this addendum too.

Off the top of my head, the beacon relay wiring.

IPDB has had this info in the High Speed listing since 2015, as well as in their other two System 11 listings:

'High Speed' is the first of three Williams games that went into production using System 11. All three games have incorrect schematics showing the same error by depicting placement of the flipper end-of-stroke switch on the wrong side of the coil. As far as we know, all games left the factory correctly wired for EOS. Only the schematics were incorrect. No Manual Amendments or Service Bulletins have been found that acknowledge or correct this error. For a correct drawing of EOSS placement, consult the schematic for Williams' 1986 'PIN·BOT' or subsequent Williams games.