Alex Simmons said:Recovery weeks? Only when needed, which isn't very often. Other than that, keep on keeping on. For most riders, rest of life factors tend to provide sufficient unscheduled recovery anyway.
+1 on this.
Another way to think about it is that prescheduled periodic recovery weeks ala Friel are very safe for someone that doesn't have better ways to know when to back off and take a bit of a breather. IOW, if you're coaching someone and worried that they push too hard too often, never rest and have too much time on their hands then one safe approach is to make sure they take every 3rd or 4th week off. It's conservative and based on some very shady interpretations of what seems to work for competitive weight lifters (Bompa's original work), as applied to endurance sports it's not grounded in science or study but is steeped in tradition.
Anyway, now that you have WKO+ and its Performance Manager you have really good insight into workload, how quickly you're piling it on, how much your CTL drops during time off and the impact of life's interruptions. Definitely take time off when you need it, and keep an eye on your CTL build rate to avoid steep ramps but that doesn't mean you have to plan every Xth week off to train well. Many folks have scrapped that sort of preplanned rest week and use the PMC to monitor stress.
Here's a shot of my PMC for last winter's build cycle and the first half of the racing season showing the way race and recover mode can impact CTL. I basically never took prescheduled time off during the build but backed off a bit when I felt I needed it and didn't stress too much when work or family life got in the way. I had a short bout with the flu mid winter but bounced back from that pretty easily by dropping out my high end work and getting back on track with Tempo/SST workouts.
I agree with Steve, you don't have to be a slave to the numbers, but you also don't have to be a slave to traditions such as taking every 4th week off. Listen to your body, keep an eye on your PMC to see if it's telling you the same thing and think of those interruptions that life tends to throw your way as opportunities to rest a bit.
Good luck,
-Dave