I completely agree that the limit gauge should not be farmed. The last thing I want to create is the need to make an extra and time consuming preparation for a big fight. There are a few ways to avoid this. The one that I think is by far the best option is for it to reset when initially engaging NM's or bosses. This is very similar to how you can heal someone outside of a party on all other occasions except for when they are engaged in an NM fight. After the initial engagement of the NM or Boss your bar would fill up normally. Obviously this would mean that the actual time that it takes for the bar to charge would have to be roughly the duration of an NM or Boss Fight. Would everyone agree with this?