The toe isn't the full metal one piece race toe like the old 155's/185's,the new 18's, and PX15/18. It's a mainly plastic one like the PX 12/14,old fks120 ect. Has vertical release and isn't nearly as durable as the full metal one.
I guess they figured the 155 sales were cutting into the 185, which is probably right, as a lot of people who would usually buy the FKS155 are going with the new 18's.
The new FKS 14 is essentially identical to the fks120 from a few years ago, but with a 14 din.
Thats my take on it, and i'm guessing Thomas's is the same.