I'm sure this was answered before the big crash of 2010 but i can't find it now. If you use a pep model for the upper leg that dose not have the inner plates what are people making them out of?
for mine im using a mix between rubber and the material wetsuits are made out of.. generally people just use flexible stuff so its easy to walk in..
after my mk vi I would totally recommend using something soft in-between as mine rubbed and chipped against themselves (they were pepped and just hardened)