Jim:
The balls today -- prior to the pullback on grooves allowed for guys to simply bang the ball as far as they want and STILL know they could spin the ball from nearly all situations -- save the most severe.
Trevino lived in a time when drivers were not the mega-head monsters you see today -- side spin was also something you needed to handle during his time. Players of today have no concept of what that was like given what they have grown up with in their overall development.
The roll back on spin will certainly add a different level of shotmaking than was there previously. The gorillas who buy the ball previously were not deterred by anything -- losing that spin advantage when off the fairway will help to some degree -- possibly to a larger degree than many might imagine.
Jim, I don't doubt having fast and firm conditions will help -- architects can check out any number of classic courses where turning points are front and center and use them as needed. I mentioned several of such holes at Winged Foot / West. Today's drivers are meant for flat out distance -- moving the ball is possible but marrying the two elements time after time is not an e-z proposition and architecture should be using this technique more and more to accentuate the idea that power and shaping of the ball is the most important element when stepping onto any tee box.
Jim, regarding #13 -- it's not the trees but the nature of the slope of the fairway that is an issue. Have you ever seent he hole firsthand -- not from TV ? The slope is painfully apparent for any player who gets too far right on the hole. The slope can serve as an ally if you hit the right spot for the ball to funnel.
Let me point out Doak used a somewhat similar concept on two of his most recent holes -- the 12th at Ballyneal and the 11th at Rock Creek are two that reward placement and shaping -- failing that the player will have their ball funnel to a considerably less advantage position. Getting players out of the mindset that power alone can win the battle will be helped with balls that spin less -- espeically out of rough lies and the like.
A number of the classic courses highlight this feature -- unfortunately, sometimes they have allowed the rough to grow so close to the fairway that the turning point element I mentioned is obscured and should be cut to allow for rollouts that can take you to a more favorable position and if slightly hit off line to roll towards less favorable positions.
Jim K:
Try to realize I was not a math major in college !
Getting holes to move in some form or fashion or to have ones with falloffs like the holes I mentioned to Jim S above from Doak is a good way to counter that. As a guy who can hit the ball a decent ways off the tee I am always looking for the way to take a hole out with one big blow -- if such hole(s) are simply straight ahead then it's up on the heels and fire away with little real impunity for strategic considerations. Working the ball provides a balance act that players would need and it tend to provide a better balance between naked power for power's sake and those who can marry sufficient distance and placement at the same time.