Are you still using ProZinc? If so, you SHOULD NOT use the Lantus TR protocol. They are very different insulins and are dosed differently. Another Internet site has a TR protocol for ProZinc, which I (and others here) do not advocate. No one on this forum uses it. We have had a few people with cats bouncing from highs to lows who have come over to this forum, who were using it. They were not having success with it.