Thanks all, its been bugging me for a while and can only really find 1:1 or 1:1.5 ratios online. Yes I wonder if insulin resistance is starting to kick in. Ill speak to my diabetic team and see what their thoughts are. I do generally rotate sites, however I wear white t-shirts and shirts a lot, so stomach area generally gets a miss unless I want blood stains! Ive also steadily been increasing basel too, and this seems correct as I have generally steady, good blood sugar readings overnight.
Thanks for the support guys