Re: Island Greens
The difference in putting skill between ball golf and disc golf leads to the reasons for more creativity in doing island greens to get a similar effect. If you make the hole shorter so only 1 in 15 miss, it truly turns the hole into a par 2, whereas in ball golf they still average slightly under 2 putts in competition on their island greens.
Increasing the green size is exactly what we're recommending so that players who are safe don't always have an easy putt. In addition, we are shifting the pin forward on the green to about 12-15 feet from the front edge so putting is trickier and many more landing in the back are knee knockers from 40 feet with a risk of putting OB. The other thing we've done at Highbridge is raise the pin on a mound about 18 inches higher than the island.