seldon wrote:Well, what about if a ship moving second FASB and then tries to tack and fails thus getting in Irons ? This would encourage ships to try FASB before tacking since you might get a free shot...
True, you do have the chance of being unable to fire if you end up In Irons (I missed that last night!) - I don't think that's too big a deal, especially because of the -1 to-hit penalty. You're getting a less powerful broadside, and only avoiding the
possibility of failing to fire all together. Presuming no other penalties, that -1 alone will reduce your expected damage output by a third.
seldon wrote:Also from your explanation it would seem that you guys play like ALL sail settings are defined at the start of the phase before ANY moves..is that so ?
No, it isn't - again, I missed the possibility of firing on another ship that's moving before you move (that's what I get for posting five minutes before bed

). That's a harder call.
My gut reaction would be that since it's supposed to be a quick reaction shot, it's not too much of a stretch to have it over and done with before sail change and thus unaffected by the possibility of halving (the -1 penalty would again balance that). I would probably house-rule that if you want to keep the option of going to Full Sail, you need to take the additional -1 penalty you would suffer at Full Sail.