Yup this is a problem I have. 40 Slim jacket is close to optimal for me (I think a 40L Slim would be better but they don't make that OTR) but the 34 Slim trousers are just a bit too slim. I've thought about trying 38 Contemp but my sense is that it's look pretty similar, actually, just based on the measurements. Oh well, my suits will always look a bit weird from Spier. At least for wearing an odd jacket I can make it work betterSlim jackets + Contemp trousers is the way to go for me. Or Slim trousers sized up. Drop 6 slim trousers don't look good with their jackets to my eye. The transition from the bottom of the jacket to the slimness of the thigh is quite awkward.