Hey Ken Ted here in Ont.I looked on my CP and I don't even have them but I'm going to guess it says match feature?

It's match feature. See attached.

image_(resized).jpeg

Looks that way, one feature adjustment on mine.

Hi pinhead52 +
You have identified the No. Match Feature Adj. Jack. The other Adj. Jack (picture, post-1) probably is the one shown at schema-G-12: "Extra-Chute-Adj. Plug": 5, 4, 3, 2 (empty socket) replays per coin. At F-17 I see in the schema a single plug and dashed wiring connecting "AS"-Relay: "2 coins-per-play-Relay, only in games made for 2 coins per play".
Another Adj. Feature is of course: "High score-Adj, Limits to gain replays by the counter".

At schema-F/G-10/11 is shown "Advance Special when lit Adjustment" - "Liberal with connection" "Conservative empty socket" - TWO plugs - 4 sockets - either both plugs have connection or none has. Can You tell me where this Adj. Plug is mounted in the pin (underneathside of playfield near the player ? (My Wms Space Mission has some Adj.-Plugs mounted there)

At schema-F-5/6/7 is shown: 3-5 Adj. Plug - 6 plugs to change position - Where is this located ? (Backbox ?)
Greetings Rolf