I have now been working on my chi running form for about a month, and I have progressed to the point where I can run 4 miles at about a 12 minute mile pace without irritating my chronic hamstring tear, which is a real blessing. I use a tempo trainer to maintain a fixed cadence, because I have found that, when my technique starts to deteriorate due to fatigue, the earliest warning I have for this is that I have trouble keeping my fixed cadence. So when this happens, I know I should back off and go slower.
Right now I am using a cadence of 82 right steps/min, (although I do a walz rhythm to avoid always counting the right step), because that was what I found myself doing naturally when I started this process. I would like to be able to increase my speed, taking pains not to mess up my hamstring, and I should probably work on increasing my cadence up to at least 85. Which should I work on first? Or should I try to work on both simultaneously, and, if so, how?