Sorry, GD, that I wasn't able to reply.
Bare Spindler is a big loss for Gamba. The tall Brazilian gave them an aerial attack combined w/ some speed.
Gamba Osaka's form combined w/ Oita Trinita's recent play...looked good for what was the end result.
I don't keep much statistical info...I am much more of an instinctive handicapper as I've gained more experience. FYI, on J. League's official (english) site they update avg. goals on the season per match - which currently stands at 2.54.
gl, GD.