Magnification for grading coins?
I was wondering what magnification other people use to check raw coins to make a determination for sending the coins in for grading? I use a 20x-30x that I have been using for about 25 years. I was told by a customer service rep at PCGS that this is way too much. Recommendations welcome, but please let me know why you're recommending a spacific size, type, or brand.