@Klomster On the subject of piratepad I don't often use it but I find that it can be useful. The upcoming Telmarion battle will have to use it or something similar as otherwise it will be very hard to coordinate it with all 5 people.
It actually depends on how you approach it, the battle type and a few other things to me. With 5 people involved, it's going to get tricky for sure but you can break it down into 2-3 collabs from different view points as long as you tell each other what exactly is happening in each other's collab or at least a baseline over the battle scene as a whole. Keeping in mind that battles are chaotic and rather hard to notice everything in one, mostly because you're trying to survive.
Example: A siege on a castle. I would suggest picking 2-5 PCs in battle to focus on who's efforts would make interesting reads, are important story wise, or would stick out in combat. Then determine what exactly they did in the fight like did they rush the castle wall, took down a seriously important attempt to seize their position, kill a strange beast or something else? After that and determining the outline of the battle, divide the whole battle into a few key collabs with each from a different PC's perspective that is all likely happening at the same time or within some time of each other.
This would allow the feel of the conflict to be felt and likely make smaller groups, which you determine the posting order, to manage at one time. However this is just my inner ramblings so feel free to ignore it. >_<
1x Laugh
