63% isn't a bad start!!! 2/3rds full isn't to be sniffed at.
It is dependant on the yield whether it's a good 63% or a so/so 63%.
Is the fact that any new start up loco gets a lot of gloom and doom posted on here anything to do with people working for established locos trying to preserve their patch?
I agree that 23% is very poor.........plenty of room to improve is the positive way to look at it!