Fastrax review and alignment questions for the pros.

I tried the four post string method this weekend just to see if I could compare and confirm the Fastrax toe reading.
Forget about that.
Even if you get the string all set, how are you supposed to get to the tie rods?
The string is in the way.
With I think I've figured out is the tie rods are pretty sensitive when you get down to 1/8 inch.
It took very little movement on the driver's tie rod to move 1/16 inch.
I mean very little.
Not even a 1/4 turn.
Test drive late this week.