Training between brevets?
So, this is my first year of doing a super-randonneur series, and while I've found the individual brevets to be amazing, revelatory experiences, I'm afraid that I'm starting to suffer from training burnout.
Just as a bit of background -- for the last couple of years, I've been averaging about 2500 miles per year on my bike. Much of that is a bi-daily year-round work commute that's roughly 25 miles round trip, but I would also do occasional long weekend tours, charity centuries and 40-60 miles rides during the summer and fall. When I decided that I would do a brevet series this year, (first 200 was in the beginning of May), I continued commuting through January and February and began adding in longer weekend rides in March. I was doing centuries by April, and I've been doing centuries on almost every available weekend since then. I have also increased my commuting frequency to almost daily (I drive in on Monday as a rest day if I do my long steady distance ride on Sunday)
I've taken a few weekends off for travel and relaxation, but in general, I've spent three weekends in each of the last three months doing centuries or brevets; and the time investment is starting to wear on me. While I regret not being able to do B-M-B this year, and I'm still trying to scheme to rearrange my schedule to make it possiblel; there is a small part of my psyche that is happy to ramp down my rides to 40 mile mornings, and get weekends back to do other projects.
So, my question is: am I overdoing it, or should we really be riding centuries in between brevets in order to maintain our fitness level for the season? The ultracycling site recommends crosstraining with yoga, jogging or swimming, but those activities seem more like substitutes for the short weekday training events. Is there an equivalent crosstraining activity for a century that isn't, say, running a marathon or doing a sprint triathalon? What's worked for you? How have folks filled the days between finishing their brevet series in May or June and doing a 1200 in August?