I bought rare fleet romulan sci boff.
2 minutes CD for tachyon beam. 45 seconde cd for hazard emitters.
This bof is worst than common boff.
I should feel ashamed still buying stuff from those cryptic thieves.
1) Hit 'U' to bring up your character window
2) Select the Romulan BOFF at the left
3) Select the Skills tab at the top
4) Put points into the space abilities.
5) When it won't let you put more points in, go to the Status tab at the top, Click the Career Options button and promote the BOFF
6) Repeat steps 3-5 until you have a Cmdr level BOFF with maxed points in the skills you use.