I finally abandoned my serger for finishing seams on delicate fabrics
In my experience, most seamstresses swear by sergers for neat edges, but I've found that a carefully hand-rolled hem gives superior results on things like chiffon or silk. For example, on a recent evening gown project, the serger was chewing up the fabric, so I switched to hand-finishing and achieved a much softer, more durable edge. Another instance was with lace overlays, where machine finishing felt bulky and obvious. Your mileage may vary, but this method has eliminated fraying without adding stiffness. It does take more time, but the precision is worth it for high-end pieces. Take this with a grain of salt, as I know it's not for everyone, but it's become my go-to for delicate work.