Brent Hutto,
Irrespective of the speed, substantive contouring will deflect approach and recovery shots to a greater extent.
A ball hit into the slope of a three foot ridge or tier will be deflectd far more than a ball hit into a subtle ridge or tier.
Doug Siebert,
Viewing the question in the context of exteme speeds of 7 and 14 doesn't address the issue.
I'd imagine that speeds of 8.5 to 10.5 are more the norm for most courses.
You have to consider more than deflection, you have to think of the effect of directly uphill and downhill slopes on ridges and tiers.
In addition, all to often, highly contoured or sloped greens are only thought of in the context of slow speeds, when nothing could be further from the truth.
NGLA, Winged Foot, Westhampton, Hidden Creek and many other courses keep their greens relatively fast when Mother Nature permits.
Hence, I wouldn't view the discussion in the context that contoured or sloped greens are inherently SLOW.
They may be maintained slower than non-contoured or sloped greens, but, in terms of absolute speed, they're not slow.