Rangers Sebastian Walcott reaping success with swing adjustment in Fall League

With gusts blowing in from right-center around 20 mph at Surprise Stadium on Friday, MLB Pipeline’s No. 8 overall prospect crushed maybe the truest-hit ball of the afternoon in the first inning of Surprise’s 12-5 win over Mesa, a 98 mph, 397-foot grand slam to end a seven-pitch at-bat against Red Sox right-hander Nicholas Judice. It also happened to be the righty slugger’s first home run…