That isn't involving the second hit, only the first. Second hit would be...
2.375 = base fTP
.19375 = Moonshade earring
.2469 = 1%QA/2%TA/17%DAx2
.1 = Gorget
.25806 = 3%QA/2%TA/17%DAx2
again this is ignoring hitrate, a proper average fTP from multiattacks would include a deduction due to hitrate not being 100%.
.22282725 and .23289915 respectively at capped hitrate; 2.89157725, 2.82681
I'm not entirely sure how you calculate your average fTP from multiattacks, and I'm too tired to try to decode it right now, but mine goes like this.
Assuming 100 attack rounds.
15% TA
15% DA
QA > TA > DA
100 * .15 = 15
TA adds 2 attacks per round, so you get 130 attacks per attack round.
DA procs after TA, and can no proc if TA procs, meaning that 15 attack rounds per every 100, DA will not be able to proc.
85 * .15 = 12.75
12.75 + 130 = 142.75 attacks per round.
To add to weaponskills:
1.4275 attacks per round, or an average 42.75% chance of getting a multiattack worth 1 fTP (unless fTP transfers to all hits), which will average to +0.4275
http://fTP.
For WS with two or more hits, since DA/TA can occur twice, you double this value, and thus it adds 0.855 fTP on average.
To factor in hitrate, multiply the fTP and/or added fTP by your hit rate. Ex.: .4275 * .95