edible...

dont listen to the criticism too much..
sure they look a bit ragged but your biggest problem
is not how they look or the amount of cotton thread you have used....(seems a lot !)

Your problem here is that you have wasted your time with CF tube...

there is so much wire extending that the cf tube is almost a waste of time...

look at welsh 3Ds rods... there is no thinnner part than the tube... solid...

if you want to use 2mm wire out the end this is okay but it needs to be literally just as much as you need and for as little amount as possible to be threaded and exposed....

Make the carbon tube the full length you need, and have less than 6mm of the 2mm rod showing before the clevice.... even better substitute the 2mm rod and clevis for 3mm stud and 3mm clevis instead....

Otherwise you pay the money and go Welsh 3D's route or similar !