If a thick thread is used for the couching thread and the cross stitches are worked closely together, then the effect of a trammed cross stitch is achieved.
GVE
Couching with cross stitch is a composite stitch and a variation of couching, whereby detached cross stitches are used to fasten down the couching thread. This type of stitch can be used for both counted thread and free-style embroidery. This stitch should not be confused with the couched cross stitch.
If a thick thread is used for the couching thread and the cross stitches are worked closely together, then the effect of a trammed cross stitch is achieved.
GVE