Wow, you've been making clothes haven't you? I know it's hard to switch down to 1/4" seams. It doesn't seem like it should be secure enough to wash multiple times but it does work well. I had the exact opposite problem I found some nice fabric and a easy pattern for a jacket and thought I could whip it out easily. I completed a whole bunch with 1/4" seams. Luckily a friend of mine came over and saw what I was doing and reminded me that I would be wearing it and should read the pattern correctly. Oops, luckily I could go back and resew everything.