Quote from: Terry Toenges on April 26, 2024, 12:40:04 PMI have pair of identical Bachmann 4-4-0's that I consisted. I only used one address for both of them. One of them is slower than the other even though they are identical so "like" locos aren't always equal in speed.
This is where adjusting CV5 and CV6 work wonders. One locomotive runs 20% faster than the other? Adjust CV5 downward by 20% and you should be close. Run them at mid speed and make a similar adjustment to CV6. I've used a stopwatch to time locomotives over a known length of track to calculate speed differences and made adjustments based on those.