Amen to that GRJ! Just yesterday I was running a MPC/Lionel F3 I just converted using ERR components that does not have the Cruise option. Lo and behold, the engine encountered 2 power blocks where the engine slows down dramatically. I will definitely need to investigate those areas.
The point here is, I've been running trains on my layout for a couple years now and just came across this "opportunity". Yep....tinkering never ends.