Not sure if you've all been following it or not, but I've been experimenting with the REACT Epics with respect to performance in running.
Here is the thread in the Sneaker Art forum:
Epic REACT Modifications and Experiments TL;DR: I've been removing various parts of the shoe and cutting various pieces of foam midsole away. My Every Day Casual shoe EDC is now an Epic with everything removed, making it a Moc.
I thought it would be crazy to run in my Moc version of the Epic, but I've done just that the last few days and I've changed my mind. It dawned on me that a daily trainer is supposed to be training you. The laceless Moc version fits tight enough to stay in place in even fast runs under 7mm, yet there is enough flexibility and loose-ness to force you to focus on your form and heel strike. While I would never wear it in a race where I tend to get loosy goosy in the last part of race due to lactic acid buildup, in training where you want to train the muscle memory and avoid lactic acid buildup, it works great. I could feel myself focusing on each heel strike and muscle form and by the end of the run it came natural.
Some other Epic experiments the hard core runners might be interested in:
I gradually sliced thickness off the mid/outsole of my first pair. First I made it less heel drop by shaving a few mm off heel taper. This felt amazing and forced a bit more forefoot strike, and my heel did not drag late in the run when my legs got tired. Next I kept the lower offset and just removed more REACT foam front to back. Again, this felt amazing. There was less vertical displacement cushion in the midsole, you could feel less "give", but there was still just as much rebound and bounce. Felt GREAT. Finally, I tried making a racing flat by removing all but just 1cm of REACT foam from front to back. This felt OK, but with no plate, there was not enough structure to the bottom of the shoe, and it felt like running in Vibram 5 fingers - you felt everything under the foot. I bet with a carbon fiber insole, it would have felt great, but I did not have one to try.
At first blush, I did not think the REACT Epic could be considered a serious performance running shoe. However, I have greatly changed my mind. My current thinking on optimal running version would be to simply pull off the laces and shave a bit of offset off the heel slope for a cushioned trainer or a bit more foam front to back for a less cushioned racer.
One more note for performance runners: The REACT foam is VERY temperature dependent. It will be too firm on cold days near freezing temps, and get way too soft on hot days running on black surfaced hot roads. If it is that cold or hot, I usually just skip