Hello there. As a fellow Jenova player, I should at least make you aware that every Friday there is a group that runs the Crystal Tower raids for new and experienced players. It is run as an Alliance and you can just check the PF for the groups. I can honestly say that until 3.2 comes out, however, the raids don't see much action due to the only incentives being for glamour gear or obscure minion drops. When the patch comes out, I believe they are adding Allagan crafting materials to both the Binding Coil and Crystal Tower raids so the traffic will likely increase. If you are interested in the Binding Coil of Bahamut, there's usually a PF up for glamour farming, everyone likes free Poetics.