I've got no problem with them as long as the green is accessible from the front.
If the green is too raised at the front, or has a severe dip short of the green (or rough), it doesn't work IMO.
So Rich, where do you stand on the 17th at KH then?
And you must never have been to Macrihanish. The 12th there is a fantastic hole, with a front to back sloping green and a severe upslope/dip in front of it.
It's a short par five that an 8 time club champion should be able to dine out on with a mid iron second. :
I have grown to love the challenge of the 17th at KH, after initially not liking the hole much at all. I love the imagination required, and the fact that there are 2-3 options of how to play the shot every time you play the hole. I do believe you have to play it a lot to get to know all the subtleties of it though, and I understand why some believe there is a lot of luck involved. Once you know the contours, there is actually very little luck involved at all.
I am a huge fan of front-back sloping greens, I wish there were more of them. The challenge of the approach shot on 3W at Royal Melbourne is one of my favourite shots on the course, even though it is generally from 80-110m only. Do you think that green would work well on a 400m hole? I'm pretty convinced it wouldn't.
I've played a lot of golf in the UK, but sadly Macrihanish was one that I missed. It is on an ever growing 'to do' list for when I get back there. Would the green on the 12th work so well if the hole was a 410m par 4?
Basically, I love these type of greens, but feel there needs to be an option to come in from short if it is a long approach. It doesn't have to be a flat or easy option, but it needs to be there.