For sure I am no expert here but I know a company that has drilled holes [350-400m] and did so in 1 1/2 -2 days. In their case it was done under very rough weather related circumstances. They lost a guy during a chance in the weather and from what I understand they almost lost another 50 feet from the cabin during a blinding snowstorm. For the most part with respect to safety and drill time, I think we are in better shape than the companies that are above the Tundra.
Take care guys,
Jerry Francis