"Hi,  As planned, I come back after my mile test. I did it 20'' faster than previous test (thanks to the cool impossible) in 7'35'' with a power of 313w. After two weeks, I find power datas usefull and I'm willing…"

"I do not think it is possible with Suunto."

"I should have mentioned: To get this accuracy advantage, you'll need to set your watch to always use the Stryd for pace and distance, and not all watches support that.  (The Garmin Fenix 3 does.) More info:…"

"Love this info, thanks for sharing. "

"Thanks for all this theory crafting. I'm impatient to receive my stryd and test that :) "

"Even if you live in a flat area without hills, the Stryd has a benefit in providing improved accuracy for pace and distance vs. GPS: I did a comparison of Stryd vs. GPS earlier in the year, using a surveyor’s wheel as a control…"

"I'm doing the 10th week of the first phase of cool impossible. I will redo test soon. I'll let you know it. Thanks for this cool offer. "

"I will be doing more videos on watts and training plans, which I think will be more effective than a new book! But YES, if you have The Cool Impossible, use the One Mile test chart to design your watts - using the avg watts for your one miler. If…"

"Maybe a new chapter for the next The Cool Impossible. Thanks for your answer :)"

"Great question Fabrice.  I think watts are extremely useful for assigning effort on trails. I have coached with power for years in cycling and I use power in coaching many of my ultra athletes.  I will be making more watt/power driven…"

"I use a chest trap. Thank a lot for theses zones I will use during my eighth week of training :) "

"OK, this looks good and consistent. And, your speed meshes great between the two tests. Lets use these zones below.  BUT quick question, do you use a chest strap or rely on a wrist monitoring HR? HR Zone 1: 0-113 Zone 2: 114-124 Zone 3:…"

"Thanks for your Answer Eric :) I would rate my effort scale at 9. Maybe I could have run a little bit faster but without being sure to finish the 20 minutes I covered 2.4 miles in this 20 minutes and with an average HR of 147 1 mile test :…"

"Hi Fabrice - Everyone's HR is different and I think we can come up with a plan. On a effort scale of 1 - 10 (ten being very hard), how would you rate this test from an effort stand point? Do you know approx how much distance you covered in…"