Bell Helicopter 'Sideways Slide'
developed for the 230 and used there and in the 430 Category A profiles for elevated helipads.
Basically you move sideways and up away from the helipad until your blades are clear of the pad plus 15' or so. Sight picture is well defined in the flight manual. No need for any large power increase over hover power. Prior to getting to the Takeoff Decision Point, any engine problems and you go back to the pad- either with sideways motion, or by turning and pointing back to the pad.
After the TDP, just fly away.
LDP is the same place, alongside the pad with the same sight picture as takeoff.
ADvantages are that there are no large attitude changes, no large power changes over power to hover, and it's very easy to make the return to the pad- always in sight and roll is much easier to make large changes in attitude than pitch.
Now if only we could get this sorted for ground level helipads...