I've been seeing these connectors more and more lately that push down into pins but that require the wire to be punched down in between two little blades (like on Otis LRVs on the processor PCB in the car station). Is there a tool anyone knows of that makes the best connection? It's a PITA to do it with a pocket wiring screwdriver and IMO it doesn't make a reliable connection. Maybe a punch down tool like the female socket of a CAT connector? What do you guys use?

It is called an amp connector.
There are t-handled insertion tools and also a gun version.

http://www.specialized.net/Specialized/2293841-Tyco-AMP-THandle-Wire-Insertion-Tool-2022.aspx

This is a link but having a hard time finding the right tool.

Orange connectors,right?

Thanks. I thought they were red, maybe orange. I've seen them on LRV's but they are on lot's of different equipment now.

They are on a CAN BUS with these kind of PB's.

http://www.madfixtures.com/index.html

Try this,a large selection.

http://www.newark.com/te-connectivity-amp