At one point I considered sending cards to KSA...when there were no options for affordable grading with reasonable turn around times. I looked on eBay completed and active listings and saw it was basically one seller offering vintage KSA cards.
https://www.ebay.com/usr/irishhosta?...75.m3561.l2559 Almost every card appeared small or had an irregular cut. In many instances cards had horrible centering but got very high grades too. I concluded KSA was the place where problem cards went.