For the first four weeks of the season, the evidence had been grim. Entering last night’s game against the Cincinnati Reds, Pittsburgh Pirates catcher Henry Davis was hitting .154/.247/.200, a slash line defined by weak contact and frustration at the plate. After an offseason spent retooling his swing, and some early results that offered genuine hope , the first month of the regular season had reverted to familiar struggles . Then came the middle innings of last night's game. Following an almost two hour delay to the start of the game, Davis' patience paid off. Two Innings, Two Bombs Facing Reds starter Brady Singer with one out in the bottom of the fourth, Davis unloaded on a fastball and sent it 415 feet to straightaway center field. The ball left his bat at 105.8 mph, sailing into the shrubbery beyond the wall and landing in the “P” of the Pirates’ center-field signage, right below the batter's eye.…