This is my first post on this forum, but I am a long time poker player (13+ years).Recently in a major tournament ($1100 live), I was knocked out on the following hand:I had about 47k with the blinds at 800/1600 with 200 ante, so I had around 30BB or a CSI/M of about 12. At the time this hand came up, we were 8 handed because a player had just been moved and immediately after that, another was busted.In 3rd position, I got Ah7h. The two early position players folded and I raised to 4k. The button, a player that I did not have much of a read on yet since he recently moved to my table, reraised