After a couple of more outdoor rides on the basic cranks I am really seeing the importance of lots of time on the rollers with the product. I spent a few sessions on them in Jan then switched to the trainer exclusively. I found the rollers w/PC's just too difficult at the time. After a couple of weeks off the rollers however, I got back on them and was amazed at the efficiency I now had.
I can't explain this improvement. I wrote above that I see the importance of roller work. I say this because on the road I really feel the lack of efficiency between my left and right pedal strokes.
I have now started to do all indoor workouts on my rollers and outdoor rides to build endurance. Three hr outdoor ride before I leave for Italy in 8 wks is my goal. Starting next week is my Tempo phase building from 30 to 60 min over 3 wks (adding 5 min per session x 3x's/wk) and after a week recovery I will perform 3 weeks of Steady State building from 2-4 sets of 8 min intervals (1:1 W:R) in Wk 1 up to 2-4 sets of 12 min intervals in Week 3.
We'll see what happens. One thing is for sure, the concentration needed for the roller work makes the time spent inside a lot less boring than on the trainer. Oh, if you're going to invest in a set of rollers, don't cheap out. Buy the CycleOps w/aluminum rollers. Little to no vibration in the hands and smooth, smooth, smooth!