Hey, so I am a 'atypical type 1' . I take novo rapid and lantus but have found that over the past few months my ratio is getting lower and lower (at the moment I take 1 unit of insulin for 12 g carb) I get low quite easily but taken a whole unit less makes me really high so I'm thinking about trying to get a half unit pen. At the moment I am using a novoflexpen so i would have to change my whole insulin perscription. Has anyone else done this? how easy is it and did It make a big difference or am I just being a bit ocd about levels?