Sewsation

Does anyone have chain stitching tips that apply when using a Kenmore 158?

I just added this Kenmore 158.18150 machine to my secret sewing machine collection. (Shhh, don’t tell!) I have the manual with cams and various attachments, including the chain stitch attachment. It is a left homing, super high shank machine with a flatbed.

I have sewn intermittently for many years, but am not experienced in decorative stitching, know little about fancy threads, and have never sewn anything on this Kenmore 158 machine. What kind of thread and needle should I use for decorative chain stitching through 2-4 layers of tightly woven medium-weight cotton or two layers of heavy cotton? Is there anything I should be especially cautious of when trying this?

I will read the manual and watch any videos I find about it, but thought I would ask this group for tips since I know there is a wealth of information here.