The trainers became more comfortable after I ran in them a couple times, at least cushion-wise...after that they also started doing a number on my legs & feet though too.
The racers I only wore a few times, I didn't like running in them because I didn't feel the zoom at all AND the setup of the shoe strained my calves too much compared to all other running shoes.
I have no doubt between the liner & lunar cushion these will be the best compared to the trainer & racer.
I can't wait to test these out, I'm entirely too excited right about now. My main focus is on practicing my zen-like patience so I can wait for colors to go on sale, then stock up on everything I want...which is about 7 colors in wave 1
I want something as light as the racers with lunar, Nike make that happen on the flyknit frees, PLEASE!