I was wanting to purchase a Think Tank Bazooka case to protect the Gitzo 3540LS I just ordered. The standard Bazooka appears to be too small, but that's the only case the local dealer had - and TT seems to be hard to reach on the phone, or via email. Any thoughts on how big around the tripod is, or which case will work (the Big, or the Humongous)

(as an aside - I'm finally getting a REAL tripod... now if I could only get RRS to answer the phone, too... ).