sorry guys, i done a mistake. anyway thanks for ur valuable answer and if possible check
in general discussion where i post a related topics and i need ur support. thanks again.

Alone7i, you already made a thread about this in GD; it has more answers too...

http://www.navyfield.com/board/view.asp?Num=192019&Sort=C06

In about 30 minitues I rolled a UK BB6 crew at the cost of like 600,000 points

I'm having a deja-vu...

Rolling for 12's and 15's takes a while. 100 times is nothing. 1 roll per 3 seconds is
300 seconds / 5 minutes. I've rolled +15 minutes at a time and longer. And keep
rolling till you find a 12/15. Another weird superstition I have is that if you start over,
the chances to get a 12/15 "start over".. even if you skip over a 12 by mistake, keep
going.

Keep on rollin'...

ps. if ya short on points, let me know, I got a few million to spare.

Max potencial is +15 but is hard make one.
Max of the other abilities is +12 is hard too so be patient and try a lot be carfull with
you points you will spend so much.