Luckily I lived close enough in the early 90's to go to his store in Hartsdale. I had bought a few high grade, low value books which turned out okay. I saw a NM/M Green Lantern 1 in his CBG ad. It was $1000 which was still a good deal at the time.when I opened it, it was loaded with color touch, bleeding through on interior spine. I immediately jumped in the car and went to the store. I showed him the color touch. He was very obnoxious, saying he drove a Mazarati and would sell the book again with no problem. I had put it on a credit card so he refunded my money after an argument. I never dealt with him again. Years later I met a guy who owned a comic store. He told me in confidence that he worked at Fantasia as a teenager and did the trimming on the books at Dupchek's direction. Later I heard he went to jail for forging signatures on sports memorabilia. His store closed and never reopened. He ripped off people worldwide and is a big reason why grading companies started.