CAT A
Spinwing,
if using the CAT A procedure with phase 5 your eyes will be looking at purely capturing the beam bar on the PFD and not the MFD engine page.
The other problem with heads in while taking off is the issue if you have to reject. Your spacial awareness is lost while you are heads in at the point when your eyes need to be out. Now where was that helipad!
And yes 102% does need to be switched in addition to CAT A switch.