The most effecient way to do it and loose the least amount of points.
Fly your normal inter-thermal speed on your final glide, get rid of
the saftey margin, fly it right down to the deck, put the gear down
and land. Straight in finish, Nimbus 3 1 mile out at 75knts 150ft agl
(maybe less). That is by far the MOST effecient way to do it, dont
give up any points.

However if you break the glider because you hit a little sink..well
then you just give up the contest. Personally I can make mistakes
myself without hurting anyone. Went to the NHRA winter nationals last
weekend, Top Fuel guys blow up engines on each run, some get more than
3 seconds before fire starts comming out of places its not supposed
to. If we had pit crews like that, then I might do final glides like
stated above. Since we dont, i'll put in a saftey margin, put in a
faster final glide speed and "burn off the altitude" at the end when I
know I got it made.