Caitsith.Kilorilo said:
5-hit OAT Kokushitsunotachi(+1) should win in most situations. An easier GKT would probably be, as said, a 5-hit Keito WS:DMG+10%
Ignoring the +2 kabuto, but with it you can drop either nodowa or white tath+ecphoria. Unless I'm missing new gear, i think thats the best option, assuming you have the gear to go with the gkt.
Like I said earlier, you need at least +64 StoreTP total for a 5hit build with 464 delay. (+29STP in gear, if assuming storeTP jobtrait and max storeTP merits)
Math:
464 delay base TP per hit = 12.2
12.2 * .64 +(12.2) = 20.0 TP per with 64 StoreTP total.
20.0 * 5 = 100% TP
However, you would have to have 64STP for Weaponskill too though, if you go with the minimum of 64 StoreTP for TP.
Now, on to the gear set that you posted. If you have that gear then, yes, you could go with all that StoreTP for TP, so that you can WS in better gear etc.
So your set would be good because:
With that gear set that you posted, you have 69STP for TP, and this allows you to WS in just 45STP. (freeing up slots for better WS pieces etc.)
Math for the 69STP for TP, and 45STP for WS:
12.2 * .69 +(12.2) = 20.6 TP per (with 69 StoreTP)
20.6 * 4 = 82.4 TP (for 4 melee hits with 69 STP)
12.2 * .45 +(12.2) = 17.6 TP (from WS with 45 STP)
17.6 TP + 82.4 TP = 100% TP
And like you said, if you have Unkai kabuto +2 on the gear set that you posted, you could then drop either the Unkai nodowa or white tathlum + ecphoria ring.... from your TP gear set.