A lot of us have made a successful transition from cigarettes to pipes and/or cigars and I wish you the best of luck. I personally don't smoke anything smaller than a robusto and there is a reason for it. I had trouble when I went too small, they were too much like cigarettes and I suffered from a temptation to smoke them like cigarettes, which in turn led to me smoking cigarettes. I don't have a problem with larger cigars or my pipe but I'd start wanting a cigarette with anything smaller than a corona. Smoke what you enjoy but keep a grip on yourself and if you notice that small cigars start reminding you of cigs get rid of 'em, give yourself a break, and try something else.
Bearing the burden of responsibility..... It's probably my fault.
Treat your silver as if it were earthenware and your earthenware as if it were silver - Seneca, Letters of a Stoic