I have had great luck with my large hard kawi box. I've had it for over 3 years now. It survived the totaling of my P650, numerous other rolls, slammings off of trees, and I swear to you it saved my life kind of. When I totaled the P650 it landed on top of my back and straddled me; I was right between the bars and rear box. I really think I would have a broken back if it wasnt for that thing. It saved me atleast one other time. Never had a problem with water getting into it and it fits everything I can ever use. The one thing I dont like about it is that its hard to get new looking once it gets dirty. I want to get rid of mine and get something new, but I'm afraid to. Sorry for drawing this out, good luck on your pick though.