Thanks so much for your input - I am looking at tartan linen peak lapel jacket on Cultizm. I agree that the vest might be best in a 52, but I worry that the jacket might be too loose in the pit-pit in a 52. Another site quoted me a pit-pit of 23" in a 52 in this type of jacket, and that sure seems broader than the measurements in the wasitcoat. Any insights? Again, thanks!