I see JSA as the most commonly used, at least from what Ive seen. But I wouldnt know why, maybe someone can help out a little more
Thanks to Jbel4331 for my sig!!!!
Collecting 1964 Topps Venezuelan(completed),Andres Galarraga, Cal Ripken Jr, Miguel Cabrera, Bobby Abreu, Phillies, Venezuelan players and players from my sig. Also all Topps sets from the 80s, 90s, 2000s, 2010s