I agree, I also think tournament greens should be available in practice mode.
The poster's above me would be more knowledgeable than I, but let me make it even easier for you:
A bold 150% power for every stroke. Uphill and Downhill lies also become less pronounced on these VERY slow greens, as do slopes (left or right); my theory is it's because you hit the ball harder, hence less turn.
Hope this helps. Happy hitting.
p.s: my status.