Rocky - thank you much. Yes, I did have the circuit from that other website (great website). My car also has the Pantera Elec ATO fusepanel replacement which is really nice and was well installed (I think!) by others before me. Thank you too for the illustration and location of the multiplug. - I'll look for it from the topside and hoping that squeezing connectors and dialectric grease may help, which it has already on some other plugs behind the dash.
Yes, I did ensure I have good grounds now for the rings on both tails - no impact yet.
Simon - thank you as well.
Again, the puzzler for me is how the Haz can work fine while the blinker is fast on both sides. the flasher itself is the same for both (its the pink wire output).
I haven't yet gotten to the below dash ground. That and the plug on the pass side in the engine compartment are my next.