Gotta share this as a MWA member.
Last night our LS formed a party with NIN, DRG , SAM, RDM, RDM, WHM.
There were 3 Skillchains:
1. DRG > SAM
2. NIN > SAM
3. WHM > RDM
Yes, me and one of the RDM were Skillchaining.
Now this was only viable with a NIN tank(and a awesome one I might add)but it worked out. Many times I was only needing to use enough MP that Refresh would cover my loss. It was a great feeling to finish off a chain 5 mob with a Hexa Strike and knowing if that Hexa Strike wasn't there we might not have gotten chain 5.
Now, this was an LS party, so although we wanted great exp, it wasn't our huge concern and it was more fun just partying together then exping (at least IMO).
Now sure if there was a in my place it might have gone faster. However, it actually seemed to work out because the only downtime we had was when there were a lack of mobs, and with a all we would have been doing is waiting more, possibly even costing us some chain 5's due to lack of mobs.
Just wanted to share an open minded experience to all you MWAers out there, and even to those who don't believe in MWA to show it is a viable.