I also like the positive buoyancy in GWX and must say very like that. But I must say that I also liked negative buoyancy when I played NYGM mod, but I think that's the
positive buoyancy is much better solution and very well represented in GWX. Just small quote from the NYGM readme:
"
The NYGM Anti Humming Bird Mod is a feature where the u-boat can no longer hover
at all stop. At all stop, the u-boat will slowly sink (I would have preferred to have
positive buoyancy but that is not possible) at a very slow rate."
But, It's possible, and GWX team made It.