I'm working with a bull denim that loves to fray. I practice the gentle fabric handling techniques demonstrated in the videos, but at some point, two pieces are matched, pinned, and sewn together, and the fabric will fray. I've tried Fray Check around the edges of each cut piece. I've also used my overlocker on cut pieces, but both methods seem like extra steps, since I'm going to trim down the seam allowance after the two pieces are sewn together.
Additionally, I am considering basting the pieces together to get a nicer seam but am reluctant to do it, as the fabric would really fray if handled that much. Any thoughts or advice would be appreciated.
Martin is right. Pinking would be the best option. There are automated pinking machines that allow you to run the fabric through it as it pinks the edges. Similar to how an overlocking machines cuts the edges before serging them.
See example
If you are a handy man (which you are) you can create a motor system for it to speed up the process and make use of both hands. Alternatively you can perhaps find with already a motor and a pedal installed.
Reza
International School of Tailoring