Hey, this is good info. I’ve got the pictured Amazon seller kit, and it works really bad!

For the task of connecting 2.54mm “pin headers” on boards you prefer mini-pv. A little hard to search for, but does this require a special crimper of its own?

As a hobbiest you don’t recommend doing your own crimping at all, and I am willing to pay money, but I do kinda need specific lengths due to a tight enclosure without much room for excess ribbon (I guess round cable might be bit better). Is there such an option? I kinda searched for it, and on electronics retailers like digikey I didn’t really see the length I wanted, though it is easy to miss stuff on there.