Voodoo76

Interesting read Bob. I've always been very structured although I havn't raced in a few years now I had a similar plan that worked nicely.

-Based on 16 weeks from A Race (eg Nationals)
-An older Rider who responds better to lower volumes (im much faster undertrained)
-A lot of years in my legs, at the time I was a 40 yr old Cat 2. Reason I mention this I really beleive this contributes to not needing as much training volume.
-A Sprinter, primarly racing Crits and Track.

I used to break it down by volume (hrs) with 70% of the volume being "Zone 2" type work either as Long rides or warmup for Race/Interval work. I might play with this as well depending on what I'm gettin ready for, eg Pre Masters Track Nats I dropped the Zone 2 volume to 60% of my total.

The taper might make more sense by percentage.

4 cycles of 4 weeks each.

Cycle 1 = 100% of target weekly volume
week 1 = 22% (of the total cycle volume)
week 2 = 27%
week 3 = 33%
week 4 = 18% (I respond well to big tapers)

Cycle 2 = 110% of weekly target volume, same percentage by week
Cycle 3 = 90%, same percentage by week
Cycle 4 = 80% (again big tapers worked very well for me)

End of Cycle 4 week 4 I would be very fast and rested.

Typical Week very similar to yours:

Mon: Recovery
Tues: Distance/Tempo, tried to make this a min 3 hr ride.
Wed: Training Race
Thurs: Track or Intervals
Fri: Distance/Tempo, tried to make this a max 3 hr ride.
Sat: Race or Intervals
Sun: Race or Intervals

I really like the pattern of 2 hard days then easy. It also fit my race schedule very well. Although if I started to feel flat I would change that up to alternate hard/easy.