James,
That is why I have used ScaleCoat II for years. You can use even paint thinner to cut the paint. I have tried TruColor but don't really like it that well. When I got back in the hobby, I was a BN fan, well the Floquil paint was a poor match for BN (cascade green) color. A friend suggested I use SCoat which gave a better rendition of the color.
Dick