I made a quilt where all the blocks had partial seams. It was my first and only quilt with partial seams too. I found marking the quarter inch at every corner with just a dot or short line helped me to match with the next block. My blocks came out much better than I'd hoped doing it this way. These were 21" x 9" logcabin blocks so lots of stretching occurred. I starched the heck out of them to help them from not stretching while putting them together. I'm also happy to say this quilt has finally been quilted and just waiting for a quilt label to finish the binding.