(As I recall... i'm sure you can look up chapter and verse if you wish):
You can be zero flight timed if:
1. Your experience is suitable (I dont know exactly what is required, but it is off the order of magnitude of several hundered hours in a comparable aircraft. For me, 1200 odd on the RJ/146 was enough to be ZFTed onto the 737.
2. The Sim is good enough.
3. The TRTO is suitably approved.
AND (here is the rub.....)
4. You complete an actual landing on the aircraft (on a revenue flight) within a fairly short period of time (maybe 2 weeks? Something like that). If you do NOT acheive this then the ZFT exercise in the sim must be repeated.
In otherwords, YES, but only in the context of an operators conversion course leading into line training. You can not,
AFAIK, be ZFTed in the context of a speculative self financed type rating to make yourself more employable.
That's as far as I know, if I'm wrong let me know.