I"m adding Falkirk's testing to the wiki: ---Levitikus 13:40, May 3, 2011 (UTC) http://ffxi.allakhazam.com/forum.html?fjob=8&mid=1298635397162868956&page=2
Did some testing with Bubble Curtain - used Ducal Guard and fought clumps of Caoineag. Tested each condition 3 times for accuracy (was mostly using recast timers and log info to figure out the duration).
100% TP - 3:00 100% TP w/Manoplas +2 - 3:45 204% TP - 4:30 300% TP - 6:00 300% TP w/Manoplas +2 - 6:00
The effect can overwrite itself (tanked many Caoineag's spells for 20 mins+ reusing Bubble Curtain at 300% TP every 3 minutes). Seems to be every 50 TP after the initial 100 gives 45 extra seconds (assuming Manoplas +2 give 50 bonus TP).