I have not used Featurecam in a while, but I used to be decent with it's post processors. I know your 4 place decimal problem can be solved in the post. After opening FC, go to manufacturing at the top of the screen, then pick post process. With your post selected, chose edit. After the edit window opens, choose CNC info, then words1. The word section is where you can control the number of decimal places to the left and right of the decimal. There are several pages of words, so it may take some looking to find all that are related to angles. The format you will see will be something like this: On the words1 page the x cooridinat is probably set to 3.4. This means 3 places to the left and 4 places to the right. If you change it to 3.3 whola!! 3 places to the left and 3 places to the right.
As for the orphaned feed rate, is it all the feed rates, or particular to a certain type of move?
I hope I have helped. It has been a long time .