Part of the idea of this is checking the needle works as you can get faultly needles. So if you tried to do it without the needle exposed you wouldn't be able to see the if the needle worked or not 🙂Another question in relation to this - can you prime the needle inside the smaller needle cap? When I do it when the needle is exposed, very rarely do I get a delicate bead of insulin, it seems to squirt quite a distance![]()