So I'm looking to pick up an Otis Cleaning system to replace my rod set for its compact package and ease of use. There seems to be a bunch of different versions that offer the same things. I was wondering if you guys could help me weed out the best bang for your buck system from them? I was looking to get the HardCore Hunter Cleaning system from Walmart. Calibers that I use currently .22, .223, 9mm, 7.62x39, and 12 gauge at the moment. Trying to cover all my bases and future calibers.