Hi I have been doing omad for 3 weeks now and I am also on m3 .I was taking 40 units am / pm to start.I would take usually just before breakfast and also just before tea not wait 30 mins as you are i was advised this by the hospital to optimise the quick acting part of the m3.Now I am on the omad 23 hours fast , eat at 7 pm to repeat next day.you have to very carefully watch your bs readings and I had to reduce my m3 due to hypos , I have been reducing my m3 gradually so I am about 5 mmol pre evening meal and are now down to 14 units am / pm and have lost a stone in weight .I will be carrying this On until my goal to be off meds and down 4 stone .This my journey , this is what I have done , I know every one is different.I decided to do this after seeing some on line information , also since me being on m3 I have put on 2 stone .