I'm not saying I try to go full speed and dance around ships and stuff, but I do prefer to constantly move (at a controlled speed), while keeping my gun arcs as stable as I can (my top priority), and keeping a good position on our enemy, possibly forcing them to turn, trying to spread out our own taken damage, trying to maintain a position where we can take out their engines, etc.. If I just park, my crew gets DPS, but a lot of times I feel maintaining positioning, however minimal, can be more advantageous, and harder to react to, if we have the momentum to keep the pressure, or and can quickly make some distance if we lose our main offense. The quicker ships can tend to slip away if we have no acceleration.
I don't expect gunners to always hit, though, that's fine for me, I can accept a good 75%ish hit rate, more or less depending on the weapon and our position. But I take back what I said about not using mortar. The Lumberjack is completely different than the Scylla mortar, didn't know that. The light mortar was a nightmare... Lumberjack seems like a very solid weapon for mid to close range.
I really liked Junker's solid gatling + flak on one side... But what should I run on one side on the Galleon with heavy flak? The top port-side gun is a harpoon, so I'm not sure what to use as a heavy gun to get past armor (no heavy gun proficient at taking down armor?). Heavy flak + Lumberjack/Manticore? My friend loves the flak weapons and tends to be a great shot with them, so keeping it is preferable.
For starboard, I'm thinking of Carronade + Manticore for strong disabling power up close.