I've just read the Carmichael Book "Time Crunched Cyclist" and I am giving the plan a try to prepare for a late august century ride. Before starting this program I would do my own version of intervals (1-mile really hard followed by 1-mile pretty easy then repeat 3-4 times).
I did the field test with 168 and 169 avg heart rate over 8 minutes. I'm 35 years old so I think that sounds about right. So my SS intervals should be at 155-160 BPM. But this seems too easy. It isnt a lot harder than I usually ride.
Anyone else experience this? Should I go harder? Should I redo the field test?