sixpack: best effing idea ever! your post inspired me, and i was able to find the same sterilite box you used. (7 bucks on sale at target for those interested)
just wanted to say thanks for the idea, and share my results.
i used some automotive "amazing goop" at the end of the tail to seal up where the plastic doesnt quite meet up properly. the new space is completely unnoticable unless you get under the bike and look for it. plenty of clearance and PLENTY of space now!
btw, the bottle i've placed in the trunk is a 1 gallon jug of arizona rx tea. and there's room to spare above and on the side!
AWESOME mod SIXPACK! thumbs up brother