TeeEmm,
A couple of things.
We just do what the FCOM says or the whole operation turns to chaos. When we disagree, contact the Fleet Manager and wait unless the new procedure is unsafe, then use your command perogative and modify it but contact the Fleet Manager and inform him/her what you intend to do.
Brakes always build up less heat when applied firmly to bring speed down to under 10Kts then released until the next application is required. Riding the brakes will put the brake pack heat through the roof.
The reference to sidewall heating is about tyres - a passion of mine. Always keep taxi speeds to 20Kts and under, even less for long taxi and/or rapid turn arounds. Overheated tyres will let you down, literally!! There is a bit of history, look at the incidents of exploding tyres costing airframes over the years.