The PGA Tour makes its fourth and final stop in Texas this season for the Charles Schwab Challenge, which begins Thursday at the historical Colonial Country Club in Fort Worth. In addition to featuring world No. 1 Scottie Scheffler, there is additional intrigue with players attempting to qualify for the next signature event at the Memorial Tournament in two weeks. Our golf experts preview the event and provide their favorite prop picks along with best bets to win this week. CHARLES SCHWAB CHALLENGE Location: Fort Worth, Texas, May 23-26 Course: Colonial Country Club (Par 70, 7,289 Yards) Purse: $9.1M (Winner: $1.638M) Defending Champion: Emiliano Grillo FedEx Cup Leader: Scottie Scheffler HOW TO FOLLOW TV: Thursday-Friday, 4-7 p.m. ET (Golf Channel); Saturday-Sunday, 1-3 p.m. (G…