Rocca and Acorn had a similar project earlier this year, here is the thread link:
http://board.belegarth.com/viewtopic.php?f=107&t=35411Couple of tips on making them:
--Shape the lames to make them fit better. Most make flat lames that wrap around the upper arm because they are strapped that way, but this ends up looking funky and not being as comfortable. Curve the lames, and even dish them slightly, to get a good fit. You can even put them on your arm/shoulder while wet and ace bandage them on to shape them really well.
--The top lame (that goes over the point of the shoulder) should be dished or formed in a way that makes it bowl. This helps it fit more snugly onto your shoulder point and prevents slippage.
--If you are going to do two pauldrons connected across the chest (with a ring, I think you said?), also put straps from that ring going to under armpit. It will help hold on the rig.
--Lastly, for holding pauldrons in place, nothing beats pointing them to a gambeson, arming coat/jacket, or piece of torso armor.
Hope this helps.
-Ramius