the strap buckle be able to slide up high enough to allow someone to buckle it in the back (for a front carry) without help. The darts in the seat are great, and are a big improvement over the dartless seat I made with my own pattern. I didn't make a sleeping hood, but probably should have. I didn't really know what they were for, but then realized they are to prop the head and avoid head flop. (See picture.)
I only tried a front carry with my friend's super cute 5 month old and I didn't use the strap buckle (I hadn't attached it yet). I did put Selena in a back carry for a
I also am unsure about the use of the camping mat for the waist band. In the first one I made I just used high density foam that you can get at Joanns. This seems more comfy for front carries, especially if you need to sit down, but for back carries the thicker foam seems a lot more substantial and supportive. I will make one with the camping mat for me since I already have one with the thinner foam.
Just to note it costs me around $15-$25 to make one of these (depends on the fabric) compared to the $100-$150 it costs to buy a similar one.
Sorry the pictures are kind of lame, but I was in a hurry and then I gave it away.