Disabling gravity drains?

[Zocom]

I've had a quick look around for an answer, but my search-fu turned up nothing. As the title says, is it possible to disable spire gravity drains (and other such ships) so that they never appear in game?

I realise I could set the bonus ships available to "simple" at the start of a new campaign, but then I would never encounter all the other cool ships that are on offer. Don't get me wrong, gravity drains provide an interesting tactical challenge and are easy enough to destroy. But as the hours clock on, they eventually become a massive source of irritation that slowly drives me mad.

[chemical_art]

I'm surprised there isn't an ship option to remove gravity effects from the game. I can understand not touching positive ones (it would ruin logistic stations and some ai types) but I'm surprised there isn't an option for negative effects to disable ships like drains, etc.