Hi DW316,
I bought an extra magnetic neck post for my DX02 which should be here a couple of days from now.
I plan on doing the neck mod myself. Although the neck is not *really* too long, it sometimes looks like it is.
I think it has more to do with the overall proportions of the head. He is slightly too small.
Shortening the neck may help, though. At least I will give it a try.
The trick is to pry open the neck post. This shouldn't be too complicated.
Since I'd like to keep al stock items for this figure unmodified, I bought an extra neck.
As soon as the neck is open, you should see the neck connector (black/red/flesh color rubbery thing).
Now you have two options.
You either leave it out completely allowing the neck sit very deeply inside the body. It should sit relatively tight in the collar, So it shouldn't appear loose.
Second, you could scrape out the wall that keeps the neck rubber in place and insert a new wall that allows the neck connector to sit more deeply.
There are some pictures of someone inserting a penny as new wall.
I shall try the first option and see where it gets me
Here is a link to one of the topics about this
https://www.sideshowcollectors.com/forums/showthread.php?114688-DX02-Neck-mod
And this one
https://www.sideshowcollectors.com/...-DX-02-TDK-BATMAN-full-spec-and-pics/page1199