Hi Tom,
I have two sets of four car short truck 65x painted heavy weights. They are different shades to each other which is where my dilemma is. The set that I call the 'pink/red' ones are uniform all over and the paint is flaking, which suggest they haven't faded due to sunlight and the other set is a slightly darker shade and more reddish.
it would be interesting to see if anyone else has similar sets that have a shade variation and to possibly understand why.