Hi efc1878
Having only been a member for a few weeks I cant really help you with the ratings.
Im doing the same as you, Im looking!!!
Some work from left to right accross the ratings were as I work from right to left, starting with the form rating.
I think that those who research will reap the rewards .
Class speed figure ratings are a greater part of my work and minimum overall ratings ( my own judement )
Good luck
sp