RNair wrote: Don't move the upper body, hands must feel free, knuckles should not be red, and let the quads and glutes all the work. HR should stay low. Do seated first time and then repeat off the saddle.
How much of a factor is a strong core? I know it seems to take 2+ min off my Nandi time other things being equal and my good climbs have always been when the upper body feels strong but loose/relaxed - for which you need some core strength, right?
<OT but related> Also what about off-the-bike workouts for quads & glutes? I kept complaining around TfN '11 about how I seemed to have lost power on climbs and sprints. It now turns out that I had small glute and upper quad tears, most probably from effort (Nandi climb

) without sufficient base, strength training or warming up. As they are healing, the climbing is getting easier. Not yet much faster, but way easier.
RNair wrote: Then Hill repeats to get the heart to work. Nandi is more than enough.
The whole hill is too long - I find I have a problem with the too-long recovery with the full descent. Repeating either the first bit or the steeper last 1/3rd seems to work better for me. Is that what you meant?