Thank you everybody for advice. Indeed I figured out my mistake was changing too much. I decided to actually follow the SLGS method. I will use the information from the yellow sticky as guidance. My question is, since I use a pet meter, the values are the same (no shot at below 8.3), or it should be less than that, like 6.3? I decided to keep 1.25U for 7 days, and measure the nadir here and there, at the end will make a curve. If the nadir goes lower than 5.6 (or 3.6?) I decrease, if higher than 5.6 (or 3.6?) I increase, but will ask for guidance on Lantus group. Did I get this right so far?