The legs do rub a bit. I like how they flare out but the main problem is they flop about because the only structural support is on the front. Technically they're supposed to be flush with the sides. If I keep 'em from wiggling there would probably be very little rubbing. Of course I also forgot to put on the belt strap, so the entire thing was flopping around on my back.
There is a lot of flopping at the moment.
Adding the weight of the torso onto the shins means I need more bungees to give proper resistance for the ankles. Gonna change the bungee hookes out for some bungee cord (off a spool!) instead. I'm also working on a lighter shin subframe, because the current ones weight about 20-30lbs!