By Seraph.Caiyuo 2009-09-17 19:37:20
Just out of the gate definitely do not TP in Rutters. I wouldn't even recommend them for WS given Denali's accuracy and a multi-hit WS. NIN gets access to too much haste gear to ditch a slot like that, though even TP'ing in Denali would be better than Rutters, with your best option being Usu feet or the 3% haste feeties.
As for katananas, the standard setup is Senj/Perdu as you seem to be aiming for, but it's actually not uncommon to still see Unji/Unsho pre-perdu (and then Unji/Perdu) post-TP update or Senj/Unji, with Unsho being swappable with Unji based on preference, but most generally opt for the higher base damage and DEX. You can grab FFXI Calculator and see how your TP/hit to 100% changes because depending on the amount of DW in your TP set Unji may not cause you to need more hits to 100%, but get there quicker. Just as a sample, 75NIN with natural DW and Suppa (no StoreTP/Usu), TP'ing in something besides a body with DW gets 100% in 22 hits with either Fudo or Unji off-handed, but gets there .2 seconds quicker each attack round, which will add up considerably over the span of a typical merit assuming you have the accuracy to take advantage of it.
Fudo's really not all that common anymore just because the crit% between Senj and Fudo do not stack with one another, although that doesn't make it a bad choice. It still stacks with natural/merited crit rate for each hand. I generally prefer the lower-delay approach, but you can likely find official testing on it if you really hunt. Just my 2 cents!
Edit: Forgot new augment katanana, Tsukumo, but haven't seen any tests on it. Would depend entirely on the augments, of course. lol