After receiving a set of the bags from you before Christmas I've been meaning to give you some feedback.
I've been impressed. Quality is outstanding. Durability seems to be great. I can imagine them lasting for a long time. The hardware and attachment rails are a great idea and mate perfectly with the MFT for ready access but being out of the way.
I've been using my bags for a few projects and I like them. They are convenient, a great size, light weight and the attachment points between the belt clip and the carabiner offer lots of flexibility. Each bag has an area for a label with contents but I have not yet labeled mine. Perhaps when you have a few dozen that will be necessary.
One of my favorite features is the 'grab and go' aspect. The rail and clips make storage and access easy but out of the way of the bench or work area. I invariably am always knocking my screws, nails, or hardware off the top of the bench or pushing it out of the way with the wood. I work in a shop most of the time, and your bags work great at the bench or when working on sawhorses.
The other day, I had to replace a few receptacles and dropped them in one of the bags along with a pair of cutters, needle nose and a screwdriver and clipped it to my belt. it was easy to move around the room without having to keep up with my tools or deal with trash from the receptacle boxes, wire trimmings, etc. Just drop it in the bag and move on. Fast and easy and 'right at hand' made the bags a pleasure to use.
The drawstrings make it easy to cinch the bags closed to both keep wood dust and chips out of them when not in use but also reduce the chance of the contents spilling out. I would like to see smaller options, perhaps a 1# and maybe a 2# size to hold smaller quantities of screws. Sounds like you have those in the works.
I'd also like to see something that might have internal or external loops and perhaps a plastic cup - thinking about how to easily configure a tool holder in one of the bags that I could clip to my belt but also keep organized. Think of a 'bucket boss' but in a 5# bag size to hold maybe half a dozen tools but also make them easy to keep organized. Sometimes I'll grab a few screws or a few hooks when hanging pictures. I imagine a small plastic box, similar to what I have in the cantilevered Festool box or the Screw assortment box in the bottom to hold small items but not have to remove everything to find them in the black recesses of the bag.
I can also see a selection of these in a Sys2 or Sys3 that become a great organizer of screws, fasteners or hardware that you could take to a job site in an organized fashion but offer a lot of modularity to grab and go.
Great product - you're on to something with these! I'll be adding additional sizes as they become available.
Thanks and congratulations on starting a new business!