Best way to insert thimble in midpoint of Dyneema 12-strand?

[SailFastTri]

I would like to use 7/16" Amsteel for a 4-point lifting harness. My thought is to construct it out of two lines with spliced thimbles at each end, and a spliced thimble in the mid-point of each line.

There is no shortage of info about how to splice a thimble at the end of a line, using a Brummel and 72x tapered bury. But I haven't found any sources about splicing in a thimble at the midpoint. Would it be enough to just use a Brummel crossover of each leg and no bury?

I have also considered cutting the rope into 4 lines instead of 2, splice thimbles into all the ends, but that would require more splices, more thimbles, and more shackles.

Constructive feedback or alternative suggestions would be appreciated.

[AD28]

Rather like this, with a thimble in the eye? Sure. This is a sheet, but I've also done the similar concept with the eye holding a block and around/through low friction rings. As long as you size the Amsteel for the load and beyond, you should be fine

[SVNeko]

Why use thimbles at all? Dyneema is pretty chafe resistant. Use an alpine butterfly knot for the middle loop.