Destroyed submodels for turrets are mind bogglingly impossible to remember come conversion time. I run through a mental checklist each and every time I go to convert, but have never once managed to remember the stupid things - always have to go back and add them afterwards.
The Triton still doesn't have any. :\
BTW, for HTLed ships I'd only add those that were present in the original model. The Lucifer POF for example doesn't have any at all, so neither does the HTL one.
Oh, and it doesn't so much apply for UV mapped ships where the texture beneath the turrets has been suitably blackened. They're still good to have where appropriate though.