For the record TD's can declare OB areas, but then they follow OB rules - if those rules are different than the rulebook - as they are at Fly Boy, or how John Biscoe gives 2 meters intead of 1 from the OB barbed wire fences at Hawk Hollow in VA, then the TD needs to get a waiver from Gentry for a PDGA SANCTIONED Event.
Your bunCR idea sounds like it could work with the entire side of both lights the length of the hole being bunCR's.
It would just have to be made EXTREMELY clear to each group when they showed up for their tee times since there is no players meeting to disseminate the changes for the players to know that it won't follow regular OB rules if Vach decides to use the bunCR instead - as then you would have groups playing the hole 3 different ways (Fly Boy way, PDGA OB way, and bunCR way) if some people didn't know about the bunCR being used (if it is).
Sorry if I took it the wrong way - as it seemed that minutes after I posted about the rule that you said I hope someone didn't ruin it wasn't directed at me when no one else was posting, but I'll believe you.
From the PDGA about bunCR's:
The concept for buncrs is to create challenges where the player loses distance but does not get a penalty if they land in them. Since that is similar to how we play Casual Relief, we created the name bunCR where the C and R stand for Casual Relief but still sounds like and plays similar to ball golf bunkers.
The three types of buncrs we've identified are as follows:
1) The line of play relief buncr is a marked area typically near the pin. If a player lands in it, the player must move back from the pin on the line of play to the edge of the buncr. There's no penalty other than distance. This type of buncr creates the equivalent of an artificial slope by the pin that works like a slope by the hole in ball golf where one side of the hole has a slope where a ball cannot land and rolls away if approached from that direction.
2) The fairway buncr provides a challenge on par 4 and par 5 holes where maybe there aren't that many trees. The idea is to place a marked buncr area where shanked drives might land. The player who lands in it must move to a marked drop zone which is farhter from the pin than the buncr. The drop zone is located in a position where the player will have to throw around a tree or two so the route isn't straight at the pin.
3) The special buncr is primarily feasible on layouts with a bunch of spotters such as the USDGC. It could sometimes be used within 100 feet of the pin or where the full buncr area is visible from the tee. If a player lands in the buncr, they rethrow from the same lie again just counting the throw but no penalty other than the distance they didn't get to move forward. Having spotters is important because you don;t want players to have to walk 300 feet to check to see if they landed inbounds or in the buncr than have to walk back to their lie.