Well, although I did some minor work for it, I havn't yet tested the Holywood, but soon will.
Been busy with some other mods.
I'm a more gamey type of guy, but in general fire a salvo of two in large ships. NYGM Damage (in GW) was a little frustrating for me in several cases due to the long sinking times and some ships requiring more than two torpedos. Also, the DG not making any difference above the waterline (since I'm also a DG nut) was a severe hit. Another thing was that it required to learn new techniques for sinking ships, thus making the player to change habits and not vice - versa. I hope these will be taken care of in the next version of the NYGM Damage; As I understand it is WIP.
The Holywood Damage looks promising, and probably a lot more forgiving by the players, since it is completely random, thus providing a significant level of uncertainty.