I highly recommend using e6000 glue. It is strong, and more forgiving in case you make an error. Yes, it is more messy and takes longer to dry, but you will not be disappointed at the end result. My entire armor is glued with e6000 and is still holding strong after 1 1/2 years of solid trooping.
You are well on your way Frank. The biceps look great. What will you be tackling next?