You want to camp wind weather outside Whitegate during the ideal season, which is during game months 4-6. Use the "/clock on" command to view current Vana'diel date. Note that one Vana'diel year spans over approximately two RL weeks, so plan accordingly. (One RL day = 25 Vana'diel days)
During those months, it is not unusual to see 3-day spans with daily wind weather in the weather forecast. During any other time, you'll usually only see 0-1 days of wind weather in a 3-day span.
Previously, I just waited for Windsdays to do this trial. But now, with the "5 credits during weather" thing, it's definitely a better use of your time to simply wait for the right season.
Oh and /nin and keep shadows up. It will make your life easier. If you don't they could spam moves on you that will slow you down. If any removable buff effect is up, they always use vampiric root.
Slight amendment there. It doesn't HAVE to be Utsusemi, although Utsusemi does count and is the obvious go-to pick for a THF. Edited, Sep 29th 2010 8:13pm by Fynlar