The main things that bring the grade down are paint loss,discoloration,loose limbs & any noticeable factory defects like paint over/underspray.Be prepared to be disappointed/surprised though as I've sent in really mint figures thinking they'd get 90 gold grades only for them to get 85s & got 90 grades for ones that I thought would get 85s.I've been disappointed more times than I've been surprised! :LOL:
If you're in the UK then use UKG or if you're in the USA then you've got AFA or CAS.UKG's website is really easy to order from where AFA's is really complicated (I had to watch a YouTube video on how to do it),I've never used CAS but think their website is quite easy to use.AFA seem to be a lot stricter than UKG speaking from experience & UKG have at least a 12 week turnaround time & AFA can be longer!
Hope this helps! (y)