I have an old 3mm wetsuit that came with pockets that were blind stitched to the thighs. It did not take long for the stitching to unravel. I was considering sewing them to my 7mm suit and wondered what would be wrong with stitching them clear through the neoprene. If the blind stitching was done to minimize water exchange, it seems that that would be extremely minimal, especially when considering what come in through ankle, wrist and neck seals. Any ideas?