Spherical Bag Clip printed on bambulabs x1

I have printed many bag clips with a screw cap designed by other people as I think they are super useful
but I always thought that the straight part of the clip is not really needed as the main part the screw cap and hole is the important part, so I designed one with just a hole, you just put the thread ring inside the bag fold over the excess and click on the surround frame then screw on the lid and its done. I think it is much easier to assemble than others I have used and with a little practice you can even do it without looking.
this is my 5th version and have added a large spade looking shape which is there to support the bag a little and it works well if the bag is not too long and on the opposite side is a weird minimalist handle that seems just enough to stop the whole thing slipping out of your hand, it works ok but am not super pleased with the hand grip,

The right and left half are printable as 1 piece so that the hinge mechanism is working and fully assembled

This is my first attempt at 3d cad and I am super pleased of what I have achieved so far, but I have a long way to go, Its not perfect but I am getting better.
For example in this print the thread works great but I had to fettle the thread start point with a file just a little to make it easier to start the screw on cap, any knowledge thrown my way on how to make better threads would be appreciated.

I would love to know what you guys think of this idea, good or bad.
I await your comments
Many Thanks