do you know how long it took them to fully transition from OP2 to OP3/OP3HS from when they came out with first op2 til when the last one was sold? 3 years. ask semiwiz or some old guy. and as far as bsi v. fsi, i don't even want to go there. bsi-1 has been around 3 years and i wouldn't hesitate to say that they've not reached ultimate yield or margins would not be in 31% w/ benefit of sale of previously written down inventory. and that's why they're re-starting what they hope will be a similar learning curve w/ bsi-2 starting q1 next year according to tsmc. so, you don'y have a clue.