With a couple of weeks of testing mid-cycle under your belt, you are ready to gradually lower the no shot limit. Looking at your recent week, I think you could lower it to 200-215 for the AlphaTrak you're using.
If you've got your spreadsheet up and running, have the diet on low carb, and are able to get mid-cycle tests, especially when making dose adjustments, you're ready to move into one of the Lantus forums.
Lantus Tight Regulation - intensive glucose monitoring, at leats 3-4 times a day, to optimize glucose control and possibilities for remission/diet-controlled status
Relaxed Lantus - often a slower protocol, generally due to testing obstacles.
(There are some Vet Interview Topics in my signature link. Sometimes you go for basic competence and trainability)