Ofcourse the checklist says something different..they give a minimum N1/2/3 to add fuel... which I personaly beleive is fine, because the manufacturer thinks it's ok, ....and I believe they don't want people sitting there for 5 minutes 'pre cooling thier engines' with a starter motoring at max, before they add fuel
If people use Max rpm before they add fuel, then it goes that someone will read this, take the cooling argument to it's logical extent and sit there with a motoring starter for much longer then the manufacturer intended.
Max motoring speed is typically 18-20% depending on the type of starter motor, and takes only a few seconds longer than achieving minimum RPM.
You've really no experience with this, have you?
For the latter question, some people in here have decided to introduce fuel when the starter rpm has maxed out...to improve cooling, ect..
No, some people here havent' decided this. Every turbine engine manufacturer recommends this, save for automatic start processes.
Lubrication not an issue. FADEC and auto starting systems utilize a computer to schedule not only the starter function, but also the fuel, obviating the need for the operator to intervene in a normal start process.