I have been reading reviews and looking at you tube videos for a while and I still can't figure out out what is the best bag combination for me. I know this is a very personal preference type of decision, and what may work for one person may not work for another. Currently I have the 5.11 Rush 12 with a 6x6 pouch on the front which contains FAK essentials which I put together and I also have the 5.11 water bottle carrier on the left side for my 40oz Klean Kanteen. I have been using this as a day pack when going out with the family for hikes or flea markets, day trips for shopping etc. Besides water and the FAK, I keep some essentials in there at all times such as a small flashlight (in addition to the one I normally carry on me), Leatherman Charge (in addition to the SAK Cadet and Esee Izula I carry on me), Field Notes notebook, pen, extra cell phone charger cord and Anker USB battery for charging my phone, bic lighter, maps depending on where we will be and sometimes my Nexus 7 tablet. I may also through in some sun tan lotion, hat, long sleeve shirt or rain jacket depending on where we are going or what we will be doing. Items may fluctuate a bit, but hopefully you get the idea. The bag is great and I love it, but I have found it may be a little big for these types of ventures with the family and what I carry and I find I am typically loading it with their sweaters, jackets and stuff that they end up buying. I have tried to encourage them to bring their own bag to carry their stuff, but those of you with family's know how well that works. So I have been toying with the idea of carrying something smaller that will just fit my stuff. I have been eyeing the Moab 10 for a while and actually ordered one from Amazon yesterday. After reading just about every review on the Internet I canceled my order last night and started second guessing if a sling type bag was really for me. It seems like a lot of people love the bag or they have tried it and it just didn't work for them. I know that the only way to know for sure is to probably just get it here and try it...I am just trying to avoid disappointment. If that is the direction that I do go with the Moab 10, then I would probably give my Rush 12 to my 16yo daughter who has been eyeing it and pick up either a Rush 24 or the 72 for the times I need a larger pack. Although I have never had a sling pack, I have had messenger style bags and never really cared for them I have always preferred a backpack and using the two straps. There are aspects of the sling bag that interest me though such as being able to have easier access to the contents without having to take the bag off like I do with the Rush 12. I am really torn so I am looking here for any input or guidance from others who may have been through a similar decision making process. Thanks in advance for your help.