Simon
While I agree usually the biggest difference with Redanalikes is the blind nature of the original being turned into a fully visible green (often downhill strangely), but I disagree about the Redan's green. There is no question the front part of the green slopes toward the tee. For the ground shot essentially the player has to bang one over the bunkers and short of the rise to the green, but flat enough to run over the highest part of the green (more or less the middle). If one can do ALL this with a bit of draw then all is right with the world. Its an incredibly hard shot to pull off, partly because there really isn't a big kickplate on the right to play off (so as to avoid skirting with the left bunker). I have played more than a few Redanalikes and none are as complicated as the original (and still the best imo), though Yeamans is very good, but really not a Redan in the same sense as N Berwick's. I think the reason so many people rate the general concept of the Redan highly, but not the Redan itself is down to visuals. North Berwick's Redan isn't terribly visually impressive, where as many other Redans do look cool from the tee.
Ciao