Mami, please don't be discouraged.
I don't know if you have looked at Gandalf's spreadsheet, if not, take a look. He is not a well-regulated diabetic, he gets 300s, my schedule is not normal so I cannot give shots consistently and he suffers. But he is not "sick." He has been diabetic for 6 years on January 30th!! He's doing pretty well.
I firmly believe that even though I cannot control Gandalf's BGs as well as I would like he has benefited greatly because of Levemir. I remember how he was after 2 1/2 years on PZI, he was tired. He has arthritis now and is not very active, but I can tell he feels better than he did even back then on PZI when he was only 15 years old. He is 17 now, will be 18 in May.
Even if you don't have Akane BGs in the 100s all the time, he is doing well. Try not to get too wrapped up in the numbers - look at his overall health and attitude. That will tell you better how well he is doing than a BG number.
And if you think he did better on the fat .3U, there is nothing wrong with trying that dose for several days. But stick with it, so you can get a reliable curve on him after at least 5 days.