Remember it's not just highs that can be a pain in the btm, if you can't stop lows at certain times of the day then it might be, like me, that you have a very low insulin asal requirement then and no long-acting insulin can cope with that.
I still have problems as my night time requirements are about 0.025u per hour between 12 and 3 in the morning, but my pump doesn't go down that far, so I do fel ill in the mornings quite often, and also often have to eat before bed (when I really do not want to) and half way through the night when it's almost impossible.
However the pump revolutionised my life, that and animal insulin. i had problems with bending my fingers, pain in joints, and very, very severe hypos - as soon as I wen ton animal insulin the pains went, my fingers freed up and my hypos, while still reading the same don't feel so terrible. Human and analog insulin just seems too - strong or something for me.