Differences in MOBB 1,2,3

[Bengal]

I was able to get a copy of MOBB 2 and was wondering if there is a big difference in the other two volumes or if they cover the same basic information?

[Lechwe]

I would recommend getting the others. #1 is similar but has different people going over how they shoot. #3 spends most of the time working on Rods method for shot sequence. Very good videos.

[Bengal]

I'd like to get the others, I'm just short on cash and was able to get #2 by trading a book. The reason I asked is because I have read mixed reviews on the differences in the other two.