Craig F. This ideaq of not 'shocking' the engines has been there with the debate about use of reverse thrust. You fly a long descent at idle, then apply mid-range power for a short while on approach, then pump the engines upto 75% in a burst, then back to idle. What are your thoughts on that, and do you have any factual knowledge about the effect on the core/turbine with the standard technique. I know many airlines are using brakes and idle thrust, but the quick turnround enviroment we now live in needs careful monitoring. I'm amazed that the speedy LoCo's don't have brake temp displays. There is already so much to do on a trun round that checking brake cooling tables amidst all the other parafanalia will most likely be missed. On other a/c this was only necessary with temps above 4, perhaps 5. They would be very helpful if this was so on B737's. However, many Flt Ops chappies on these LoCo's may not have big a/c experience and not choose a customer option apparently to save cost.