Assuming he TPs in this:
And let's pretend he uses something similar to this for WS:
Let us also assume he has full STP merits.
Y/G/K TP Returns in that WS Set would be 16.6 TP.
100 - 16.6 = 83.4 TP to be gained in the next 5 hits.
TP per hit in TP set:
16.7 x 5 = 83.5 TP.
Guess you're right, 100.1 TP. Not sure why I was thinking 11 for WS.