Jul. 26—Jack Wieler found something on the back nine during Wednesday's opening round of the 49th Palmetto Amateur. A mental re-set led to a solid finish to the round, and that bled over into both Thursday and Friday as he posted back-to-back under-par rounds at Palmetto Golf Club. That left him alone in the lead Friday evening at 4 under, and he's going to need that mindset to continue into …