"I must have missed them."
I'd say that would be a huge understatement that the likes of JeffB and Forrest would agree with.
"Could you list the six hazard features that are more effective than bunkers at presenting a tactical challenge and extracting a "cost" for encoutering them, that populate the LZ for long hitters?"
Sure;
1. water
2. trees
3. gorse, whins, bushes
4. rough
5. slope
6. contour, hollows, mounds, berms, etc.
And there are others---
"Then, could you give me six examples of club's that employ those six hazard features that are more effective than bunkers, that extract the same penalty for encountering them, that provide a tactical signal to the golfers eye?"
MORE effective than bunkers, that extract the SAME penalty or provide tactical signals to the golfer's eye, are your words and not mine or JeffB's or Forrest's.
What we ARE saying is those hazard features mentioned above ARE effective hazard features for long hitters or any other golfer and they are alternative hazards and interchangeable with the sand bunker hazard feature.
As for an examples of six clubs that utilize them one could probably find at least twice that many in East Lothian alone.
It would probably be appropriate to just concede that point, Pat----the premise of this thread of yours in totally unsupportable. Apparently you think the entire world of golf and architecture needs elongated bunkers only to reign in long hitters. We don't think it's that one dimensional by a long shot.