Ardberg,
Not quite
By doing so the pilot creates ,after rotation point, a take off profile that never goes under the height of the helideck, and reaches Vtoss quickest possible.
Firstly, the manoeuvre must ensure deck-edge clearance - a target 15ft - and this is part of the 'take-off mass' calculation
Secondly, the helicopter may descend below the level of the deck and the 'take-off mass' is adjusted so as to minimise this drop-down (the helicopter remains above - a target of 35ft - the highest obstacle in the take-off path).
Thirdly, the manoeuvre is balanced to minimise both the min-dip and the distance to min-dip (where min-dip is the lowest point reached in the take-off path).
Finally, this is a PC2e calculation/manoeuvre and not Category A/PC1.
Jim