I see your point Alan, I really do - but some CD counsellors are more approachable than others. Also, some people don't want to bother their CDCs with questions on bank holiday weekends...
IMHO, you could get away with not having the skimmed milk if you really don't want it. Then you'd just be having 4 packs a day - which isn't really much different to being on Sole Source. But I'm guessing that your CDC put you on SS+ because she felt you might do better having a few extra calories, at least to start with.
See how it goes. It is handy having the milk because at least you can put it in tea and coffee. But if you don't normally have milk, it might be worth discussing with your CDC whether to switch to the other version of SS+ where you have 3 CD packets and a 200 calorie meal.
Welcome to the wonderful world of CD-ing, hun.