Is it advisable to size down 3 with the 106? I am a size 34, planning to get a tagged size 31 (waist 33). Hoping that these's stretch to a 34 once soaked and stretched...going for a slim look to wear with either Purcell's or some Superga's Also, I noticed that the 106s have a zip fly. Does that affect its look at all? I'm thinking once it's soaked the denim will also shrink or pull the fabric the zipper's attached to creating a weird look.