You may still want to try. I have a 38 and 40 in the Havana jacket and the shoulders are not largely different. However, the 38 is definitely snugger. If you don't feel your existing size is snug in the shoulders then yes the larger size may not work. But maybe you'll get lucky.On the topic of the Lazio, I am now understanding everyone's beef with the sleeve length. I felt like the two sizes I tried had the sleeve length was for one size smaller.