The phrase "drastic leap" is grammatically correct and can be used in written English.
It means a sudden or extreme shift or change. Example: The company's decision to switch to a new technology was a drastic leap from their traditional methods.
(Considering that Syracuse's RPI was 46, don't expect a drastic leap).
Pip's journey across a childhood landscape of prisoners, mists, and decaying wedding veils, his drastic leap into adolescence and final turn into a strained, pale adulthood charts the map of adolescence for a century to come.
The arguments for such a drastic leap are largely political and cultural rather than economic, of course, but to the extent that economics does play a role in the debate, it is important to be clear about what's at stake.
It's a pretty drastic leap from the Sense overlays of yore, which have generally looked very similar (save for some recent, much-needed changes) for years now.
Japanese communication app Line has proven ubiquitous as well, as it made a drastic leap from over 30 million users to upwards of 65 million users between April and October 2012.
About 40,000 years ago, stone tools made a drastic leap forward.
No serious chemistry text could make so drastic a leap so easily.
"From pastry chef to professor was quite a drastic leap".
Fox's abrupt decision in April to do a shortened final season has necessitated storytelling leaps that are drastic even by "Fringe" standards.
It's a hell of a leap, shedding almost every trace of the sketch format, and pressing ahead with the drastic demands of the story.
Android 4.2 isn't the tremendous leap forward that some Google faithful were hoping for, but it definitely delivered some drastic changes to the Camera application.
