It seems no matter what I do, my thread keeps "disintegrating" after stiches. See picture, you can see the thread has not been able to keep "round"
On a side-note regarding the image; yes, I realize I ended the two stitchlines on oposite ends on this one
I have tried different leathers, different thread, different hole-making devices and diamond stiching irons, flat stiching irons, stiching tong(?).
Also tried more tension and less tension.
Any tips?
It's asking a lot from polyester on thin leather (what I assume from looking at the image).
Cabled linen is much more dense and will resist the hammer more. Thicker leather will also allow the thread to sink in more easily. Thin leather only has so much give to it.
What thickness is the thread, and what is the brand?