Hi, I too suffer from the dawn phenomenon. I'm also on two injections a day. My bg is usually 7 or 8 in the morning. This has always been the case ever since I was diagnosed nearly two years ago. I'm now on a low carb diet and doing well on it, so my morning reading is usually the highest it gets so I'm not too worried about it because it is only at this level for maybe 2 or 3 hours. It is interesting to test your blood in the night to see at what time your bg rises. Mine seems to rise around 6 or 7am but I'm going to test this again to check properly.
Eating a supper/not eating a supper has no effect for me, neither does the amount of insulin I inject. I can be 4.5 at night, eat no supper and then be 8.5 in the morning. It just doesn't seem to make sense.
I too was thinking of changing to more injections so I would have more flexibility and control etc.. but I've found that low-carb actually works for premix in that I now don't have hypo's anymore and can delay meals and I also don't have to snack between meals. My blood sugar is alot steadier and more predictable. I reckon I could still get my control better on a different insulin regime but I hate injecting so I'm staying as I am for the time being.
As others have said, it might be a case of just experimenting to see if anything helps but don't be surprised if it doesn't. You've spurred me on anyway to try and solve my own dawn p. Carol x