I've competed in two fixed gear hill climbing contests. Of course I'd say I am fairly new at biking, however I highly doubt you could tell me anything I don't already know about this particular subject. If not, enlighten me.
Yes, you want to stay in the seat when you are climbing and you also want to have a light grip on the bars. This is a good rule for most (but not all) inclines because you'll be more efficient and gripping tight will cause pain later on.
Yes I'm sure you competed in all kinds of fixed gear hill climbing contests
But really, you oughta take those impressive credentials and offer to coach some of the teams planning on competing in the TdF. Those guys do a lot of climbing and according to you, they've been doing it
all wrong...