Aileron input prior to takeoff roll or during inital takeoff roll? Hmmm, how much aileron input due you need to keep the wings level? None.
The aim is to set and forget. You cannot 'fly' the aileron on in the early roll, so just set and leave and concentrate on holding the centreline. You will need it more>100kts when it will be set already, not giving you a rising wing to suddenly remember to counter.
I don't like home made, self imposed speed restrictions.....reason? .... 'for birds'. 'The birds' should not be in a control area. There is no such official speed restriction on the aeroplane. One hesitates to do it at London, but most of flying occurs elsewhere where skies are not so congested, and I do hustle for it.
This one is a regular Pprune item. Search should bring up several discussions on this topic, with all the old chestnuts regurgitated and spewed out!