Well done on getting such an improvement....so if your 2am reading is still about 9, then you would still need to raise the basals a little from 11pm-1am. If levels rise between 12 midnight and 2am you would need to raise the basals from 7pm onward I have assumed though that you are not doing a food and bolus at 11pm at night that would have an effect about 2am!!!!! You have to look at the fact that BG's are dropping 3 units between 2 am and 7am, so you may have to lower your basals from 2am though to 6am, otherwise if you get a lower reading at 2am, you may well find the BG's will drop far too low by 7am.
You sound as if you have probably realised this already....
I think you have done amazingly well.
Once you can get reasonable levels during the night, give yourselves a break from the testing. You don't have to get perfect levels, just reasonable ones without hypo's. Testing nightly initially can be a drainer on everybody during the following days, and may give anxiety before going to bed....
I did the opposite, I wanted my daytime levels right first, as during the day I am by myself, and at night my husband is there. My DSN didn't mind me asking to do the opposite of what is 'normal' practice for new pumpers.
Make sure you keep good records of your food, bolus's and correction's and even daily activitys, as it makes it so much easier to find out the patterns to what is happening.
Christmas will be an adventure. I have only been on pump since mid August, and this is my first Christmas with it, and I had been wondering on how to have a few treats, so have had a couple days practising this week!!! (First ime I have had snacks between my bolus's) and am quite confident now. Few weeks ago I went out to friends for a takeaway fish n chips-and I even took my carb conerting book and weighing scales with me. Last week when we had fish nchips again, I knew exactly how much food and bolus to have without weighing or converting because I had already done it and written it down.
You will definitely find that basals and bolus levels will vary from your initial set up. It will fluctuate depending on weather, illness, exercise, but you will definitely manage it.
Don't worry about what your TDD's and bolus/basal ratio's are initally, more important that you find out what works. If then you find that you are on a different ratio to 50/50 or 60/40 then it can be amended quite easily. The TDD is what works for each individual, and what works for one person will be totally wrong for others, the TDD is totally irrelevent and nothing to worry about.