The new lever blades have a higher leverage ratio. That is why the brakes feel more flexy, because they have more power.
If you want a brake that feels like last years 4-finger blade, get the shorter blade. If you want even more power, get the longer blade, but remember it won't feel as solid. We have set a few up here, always felt absolutely fine.
Magura don't have much stock of 2005 stuff at all.