Yes on the 4.75 units reduction. Good luck with the new dose.
As last night showed you when you shot a 207, shooting full dose when over 180 is no guarantee of how the cycle will go. One day, when you are home to monitor, and would otherwise think "skip" and she is over 90, try a half or reduced dose instead, to see how she does. Otherwise, the bounce from last night's greens, plus the skip will send her numbers quite a high. A partial dose will make it not so bad. Also remember than with Levemir, you nadirs are later, and preshots will be lower. But we dose based on how low the dose takes the cats - the preshots aren't a good indicator.