How quickly can you load XO racks? Are there any requirements in order to be able to reload (if all or most of your armor is damaged, etc)?
IIRC an XO rack takes 5 tactical turns to Reload.
You have to be drive down AND shields down to do it (making realoading in a battle environment a VERY risky proposition - unless you like the idea of 5xMissile Damage).
Of course the XO must still be there - each point of damage inside sheilds (excepting damage caused by P, N or ADMs) destroys 1 XO (loaded if avlaliable). If you have suffered extensive Armour damage you are likely to have lost a number of your XOs - particularly at high TLs where you may have a lot of advanced armour as XOs are lost PER HIT, not per hull space.
In my experience, I have never reloaded XOs in a battle, only between battles, and if you have 1 interception turn between engagements, then you have enough time to reload as long as you can stand still for that time - which has never been a problem for me - the shortest delay between battles I have been involved with was 12 hours.