I like Ultimate unwrap.

My work flow is

Hex to Ultimate Unwrap...

3D tools  > Weld Model

Select By Material to get rid of the Hex Def Surface

Select ALL

2 D tools > Relax UVs

2D Tools > LSCM UVs

Arrange the islands on the map

File > Export UV map > save as PNG

File Save as > New file name so the original is preserved

Good Luck!!

Andy

;>

Andy!