I received the SP62 today. They are indeed quite close to the SP28. They fit well and the waist drawstrings work well. Unlike the SP28, the material is "Nylon Stretch." which is an odd name because it doesn't stretch at all. It feels rather flimsy compared to DS. They are only available in black.
Nevertheless, they are quite comfortable compared to the SP56A-M and are the best ACR shorts currently available.