There are some really good presentations here:
http://easa.europa.eu/events/events....-_Open_session
If you open the compressed file marked presentations, the Cessna presentation titled Cessna single engine SID 13 March is particularly good.
It suggests that they are finding that low time properly maintained singles are taking 10 hours to complete the SID and high time well maintained singles are taking 25 hours. Plus any repairs required, naturally.
It doesn't look very scary for a fixed gear strut wing 100 / 200 series. The cantilever wing 200 series don't look nearly as easy. You really wonder if they may have a use-by date.