I've had some success over the years wagering March brackets by focusing on the close games (i.e., 7-10, 6-11 and 8-9 matchups). I only use about 5 pieces of data for these games. Here are my bets/leans (astericked): Note: using WSEX lines from early this morning - if they have changed, sorry.
**KENT ST -2.0
UNLV +2.0
KANSAS ST +2.5
**USC -2.5
KENTUCKY +4.5
**MARQUETTE -4.5
TEXAS A&M -2.0
**BYU +2.0 Bigbet
ARIZONA +2.0
**WEST VIRGINIA -2.0
**SOUTH BAMA +4.5
BUTLER -4.5
ARKANSAS +1.5
**INDIANA -1.5
OREGON +2.5
**MISS ST -2.5 Bigbet
**ST. JOSEPHS +1.5
OKLAHOMA -1.5
DAVIDSON -2.0
**GONZAGA +2.0
**BAYLOR +3.0
PURDUE -3.0
Oscar
**KENT ST -2.0
UNLV +2.0
KANSAS ST +2.5
**USC -2.5
KENTUCKY +4.5
**MARQUETTE -4.5
TEXAS A&M -2.0
**BYU +2.0 Bigbet
ARIZONA +2.0
**WEST VIRGINIA -2.0
**SOUTH BAMA +4.5
BUTLER -4.5
ARKANSAS +1.5
**INDIANA -1.5
OREGON +2.5
**MISS ST -2.5 Bigbet
**ST. JOSEPHS +1.5
OKLAHOMA -1.5
DAVIDSON -2.0
**GONZAGA +2.0
**BAYLOR +3.0
PURDUE -3.0
Oscar