It seems like you were disappointed in the amount of held reflex and reacted by adding the glue on tip overlay recurves to try to make up for it. Since it seems thicker than finished dimensions, it will gain reflex back as you approach your finished tiller. You really don't need more than 1 1/2" to get a good performance boost. With a thicker limb at glue up, you already compressed enough wood on the back.
My favorite way of gluing these up is using narrow blocks of wood that poke out an inch or so on each side, and using rubber bands looped over the ends, and drawn under the limb and twisted over the other side of the block to hook it, then back under the the limb to loop over the far end. Make the blocks narrow, and put them close together. You can add additional rubber bands if you need to. I still use clamps at the handle, but still with the blocks. This will keep the edges from curling.
I never take a chance with glue. I buy fresh glue that hasn't frozen. With the glue you said you used, you have to have everything in place and move fast!
Have fun.
Dan Perry