I ran the first 80 odd kilometres in these shoes during the winter and spring where the studded sole provided good mid range grip on my trail runs. As previously reported I was disappointed with the change in the heel arrangement with these and other shoes which started to put pressure on my Achilles tendon. My summer shoes – Inov8 f-lite 190s – however have caused me some serious issues and therefore I chose to return to my winter shoe in the knowledge that they were comfortable to run in. This has proven to be a wise choice. These shoes, like the previous incarnation, are extremely good shoes to run in on both the trail and the road. I like this versatility and like the way these shoes seem to encourage good running form. So, early worries aside, Inov8 have replaced probably their best shoe which was sadly let down by tears in the fabric with a worthy and more robust successor.