By Frankie Taddeo Bets and analysis for the fourth week of USFL action. The first two weeks of USFL action was a wise investment for bettors who backed the favorites and the under. However, in Week 3, underdogs flipped the script and went 3-1 straight-up (SU) and against the spread (ATS). The one constant for bettors remains low-scoring contests as wagering on under the projected total by oddsmakers emerged victorious in three of the four games. Favorites still hold the edge overall with 8-4 SU and 7-5 ATS marks, while the under has cashed in eight of the 12 games (67%). The kicking game conti…