I need a Flip flop for my design. I designed three kinds of FF.
1) Standard TG based Master Slave
2) C2MOS
3) Sense amplifier based

I figured out Sense amplifier based FF is the fastest among all.  Also, it comes out of metastability very fast.

Why isn't sense amplifier based flip flop used in most of the applications ? Which FF is generally used in high performance Digital CMOS circuits ? Is there any application where this sense amplifier based FF practically used ?

-CA