Round Tripping in Photoshop and Profiles

Greetings, I have a BenQ monitor that I keep calibrated via Xrite hardware. It has a custom Adobe RGB 98 profile. My question is concerning PS round tripping. My ultimate output will exported as an Adobe RGB 98 file and sent to my printing lab. In the edit with Photoshop dialogue box (still in C1, right before opening PS), do I set my editing with Photoshop profile as Adobe RGB 98 or my calibrated monitor profile? Thanks