At level 30, Yukiyo can do:-

Positron (Level 10-15)
Synapse (Level 15-20)
Sister Psyche (20-25)
Citadel (25-30)
Manticore (30-35)

and

Moonfire (23-28?)
Ernesto Hess (25-30?)

...

The older TFs, the original ones, tend to be longer and more boring. I find Sister Psyche and Positron really blah. I have fun with Synapse and Citadel, tho Citadel sucks if you can't hurt robots - like /Psi defenders and Mind/ trollers. Manticore is okay for me.

-- Acyl