Meh, it differentiates them from golems, and keeps them consistent with Spire Frigates. On my spreadsheet there are 18 player-ownable ships that get a bonus to heavy and 20 that get a bonus to ultra heavy, and the overlap is 16 ships (excluding drones). Giving these guys a heavy bonus would help differentiate them from Raid Starships, which also shoot through shields and have a bonus against ultra heavy (but not heavy).
Ah I see, that's fine.
Yep, so something like a 1.2 multiplier for heavy and ultra heavy would be nice. I want it not so much that I feel it needs the extra damage (base dps can go down to compensate) I do it more so that its auto targeting hits bigger craft and so that it better conveys its role as anti-capital ship. The description wouldn't need to be changed then either.
I'm still mulling over if it should have the "is it large?" flag, so it can't fire upon most fleetships. I like it because it ensures that without micro it will always hit the largest target. It's rate of fire wouldn't have to change due to caps either, actually, because its targets would be the same regardless of cap. However, there are few cases where you would want it to shoot at smaller things, for example an AI forcefield with a bunch of units under it so your raider can't attack it.
I'm actually starting to lean on it having the "is it large?" flag because it prevents so much micro. I would appreciate that far more often then those rare edge cases where I couldn't hit targets under shields. It's not like the starship can't join your starship fleet and use its heavy attacks to bring down the shield itself after all.