I have also managed to pass my module one exams first time while working shift work. I'd agree with the idea that you shouldn't try to rush them - just get them done as and when you can. I just accepted the fact that apart from flying, I wouldn't spend my spare time doing anything other than study. I've got my module two exams in a couple of months, hopefully I'll get through those first time aswell. If I do, it will have taken me 11 months - I think I could have done it quicker, but I had to move house and change jobs during that time, which meant I had to stop studying. I think I'll have done a total amount of 8 months to pass it all. If I pass!