Idle for 12 minutes -after- the fan comes on; from Cold Start; "WITHOUT TOUCHING THE THROTTLE."
So, just to make sure, I re-did this and tested the hot start problem again.
73 deg. ambient temp. took 14 minutes for the fan to even come on to start the test. Glad to say success happened. All the hot starting I could come up with today, including stalling intentionally or not so much, up to 2000 ft and parked, etc., seemed no different than cold.
za, za, za....and Houston, we have ignition.
Thank you, MadAngler for this tip.