Also make sure your wear your undersuit and measure it! close them to together, then draw a line with pencil. Then score using a plastic cutter! you can get it a ACE Hardware for cheap. Then snap the pieces! then you line both ends together like how you would line up 2 rulers side by side! then tape them at both sides and fit it! Once you are happy, cut cover strips! and cover the seams!
Are you thinking of doing cover strips? See the shins that i have attached. Biceps,forearm,thighs,shins i used same method.
ALWAYS CUT LESS maybe with 1cm first then another 1cm! but if you cut 1 inch, you can use the excess as cover strip or inner strip.
In this pic i have added inner strips and waiting for it to cure. I use E6000 glue! they are the best!!
Do drop me a PM and send me your email ID, i will forward and help where i can!