I’d have to put some real thought and math into it for me to decide what kind of edge we really talking bout, just top of head sure feels to me like it significant!! Even more so now days with the ghost runner and how often we see crooked numbers and/or both teams scoring in extras!!
Honestly I started getting away from full game unders even before the extra inning change and just as importantly to me the rules bout relievers having to face certain number of batters before being yanked. I was just tired of capping pens/having to guess which guys managers will bring in!! Ultimately my strength has always been starters vs lineups so just made sense to mostly play FF totals, obviously there exceptions as I could be looking to fade or play on a certain pen but for several years now FF have made up roughly 80% my total bets! Really only time I play full game unders these days when Im parlaying with +1.5. That said if book graded them after 9 innings I gotta imagine I would play more of them!! I play a lot more full game overs (wanting the pens and extra inning ghost runners), where as I wouldn’t ever play a full game over with his rules!!!
What bout sides? Obviously they a push after 9 if game still going!! It be amazing to play the +1.5 if he grades after 9 innings!!