I've read a handful of topics/articles/videos on this topic, but I'm still running stuck. I cannot get a different feed speed for a particular material.

I have a 0.75 MDF material which I want to override the border tool with tool 1 and a feed speed of 900 ipm.

To do this, I went to the "Code" section of the material in the material file and entered "|T1 F900" like it describes in the article.

However, when I process a part from that .75 MDF material, it produces Gcode with the Toolfile Feed speed of 1100 ipm or 18 1/3 inches per second (see attached gcode file). 

Here's the Toolfile feed speed:

Does anyone have any insight into what I'm doing wrong?

Thanks,

-Josh