cosmo
If you read my last post again you will see I recommend looking at the PFD passing 8-10 degrees pitch, not to start the rotation. I did it that way for 30 years and it is the most accurate way of ensuring obstacle clearance, which is arguably the most important aspect of a take-off.
If the RVR is on minimums, it looks the same (almost).
And if an engine fails you are totally in the loop re speed trend. What's not to like?