Eddings has been unbelievable for unders for his entire umpiring career - compiling a record of 64-98. What's more, his career strikeout to walk ratio (2.75) is by far the highest of any ump in the game today - 2nd place is Bill Miller at 2.36.
A word of caution, however: The game opened at u10.5 -110 Monday night at pinny and dropped all the way to u9.5 -120 before it was rained out yesterday. It is obvious that having Eddings behind the plate was what was behind this move. This morning it opened about the same and has dropped even more today, although not as drastically. In short, it looks like having Eddings behind the plate is already factored into the line. One other concern is whether Eddings will actually be behind the plate. MLB frequently changes the normal umpire rotations after rainouts.
On the positive side, each bullpen had a full day off after both were used extensively Monday night.