Fine knits are soft, resilient and drape lightly. So the key skill here is how do you work with them. Overlock? Coverstitch? Machine stitch? Or just use the fabric as a blanket? This type of fine knit is too good to be used as a blanket.
I decided to make Simplicity 2603 again and work on this new navy version.
Using a basic 4-thread machine sews the seams well but be aware of the best stitch and thread tension. As Maris says, test your fabric first.
Testing this knit with no stabiliser resulted in tunneling. Even 'steam a seam lite' didn't help. So without any additional tear away fabric, Coverstitching wasn't going to work.
You can see how fine this fabric is and it just didn't go through the coverstitch machine without looking 'angry'.
Aaah. Success. A simple straight stitch worked.
Testing your machines with fine fabrics will help create something you're happy to wear.