[jrenfrew]

Thanks guys for the great feedback...
Fuel pump relay = SK6468 (Original 1978 relay I believe)
@JKM, looks like you got your feedback, but I confirmed with the 78 electrical schematic that the relay is controlled by the ignition output pulse generated by the main ignition unit which feeds the TAC and the AC relay if equipped. No, meter switch on 928 CIS.

I've owned the car 28 years now and familiar with the long term park start. I use to have an AUX toggle to allow me to prime the system, but ditched it for the ignition tap. I'll just tap the START position a few times until I hear the pumps load up.

Lately I've been having a hot start issue. Sitting hot for 15-45min and the car doesn't like to restart. My primary suspect is injector(s) leaking, causing engine flooding as they've never been serviced / inspected. Waiting on some parts to arrive so I can do a leak/opening point and spray test in each injector.

@Reanimotion: Which BM'r relay are you using? Having a "prime" would make the car a little less grumpy on longer cold starts I suspect.