The BL ones are easy to thread with the air thread systems.
Do you make any other projects? We have made serger covers, pillows, notebook covers, zipper project bags, etc with our sergers.
There is a pretty decorative stitch called Wave Stitch. Very nice design for finishing edges.
Project here.
https://babylock.com/learn-and-creat...d-hem-blankets
Don't think too long. Get it and have fun!