For a rig take off the procedure we use for the 76C is as follow,
Establish the aircraft in a 5 foot hover to check N1 margin (as a guide 3% between hover and max of 100% ie max hover of 97%). Climb vertically until the aircraft is at least 25 feet RADALT with at least 200 feet/min rate of climb. Rotate to a max of 15 degrees nose down and accelerate to Vtoss (60kts) as soon as possible. Climb straight ahead until 250 feet VBROC before commencing a turn, select gear up at 60kts and disarm floats approaching 75kts.
CDP is the point of rotation - a failure prior to 25 feet you land/crash back on the deck (you are inside the HV curve) and a failure after rotation will require either a ditching, or if you have the performance, fly away.
I have experienced a failure at the CDP and was able to fly away under the conditions which prevailed at the time ie 500 pounds below gross, 20 kts of wind and 12 degrees OAT. Would not have guaranteed success at gross necessarily.
Hope this helps.
Brian