You should now that it is far far easier with chains. But thats not the point of lifting with chains. The whole point of lifting with chains is to get full stimulus at both the bottom and the top. It teaches you to handle more weight on the top half (paralell and up) portion of the squat. With chains the weight collects on the floor on the bottom half, the whole point is to over load the top half. Its much harder holding the weight at the top, the top half is actually harder if anything. When you first walkout, the first thought is 'holy crap, this hurts.'
You get the stimulus of extra weight that a max on half squats or parelell squats gives you, but we also get to go ass to ground and get full ROM because its easier at the bottom because the weights have collected on the floor.
Like I said, we are just having fun and are proud of our new gym, so just thought we would share. But would be no point in lying about the weights we are lifting just to boost our egos.