My take on it is to go. I did it once around for nav and (hopefully) will be doing it a second time for pilot.
If you are committed to it, you won't get eliminated. The people that get eliminated are the ones that decide they don't want to be there or think its a guarantee to pass (from what I saw when I was there).
Personally if I get asked if I want to skip it the second time around I'll be declining that offer.