1. Do it at the recommended RMP produces a smoother RPM increace. Applying fuel and spark at higher RMP may reduce the peak temperature but may introduce a less even RPM increase. Don't you think that the engine manufacture would have suggested or recommended a higher RPM if it was better?
2. Our company does not recommend the use to TOGO, we advance the thrust levers manually for all missed approaches.
3. Window heat, simple....."bird strike protection." Without window heat the cold with heat much stronger.