I believe I would be much closer to the Ruse explanation.
So subjective morality would be your position, the next step then would be to look at both arguments supporting for and against. It would be a good idea to record down why you agree with some points and disagree with others, either way, welcome to the world of philosophy.
I'm an objective moralist myself, an example of this position would be this;
To say that there are objective moral values is to say that something is right or wrong independently of whether anybody believes it to be so. It is to say, for example, that Nazi anti-Semitism was morally wrong, even though the Nazis who carried out the Holocaust thought that it was good; and it would still be wrong even if the Nazis had won World War II and succeeded in exterminating or brainwashing everybody who disagreed with them. - Dr. William Lane Craig
So I believe that humans instinctively (which is the part that makes it objective) have a basic set of moral codes which came into being when homo came into existence on the evolutionary map (objective morals as in relative to our species and any species that may evolve from our current development). Thats not to say that humans are not capable of building subjective opinions on top of what is already objective, but it does imply that humans even on a basic level have a universal understanding of right and wrong, which appears to be a reoccurring factor in most religions, world views, throughout human history and civilizations.
Another example would be;
Objective: Murder is wrong.
Subjective: Depending on the context of the situation and what you define as murder.
Definition of Murder: The unlawful killing of one human by another, especially with premeditated malice.
Most people would agree by given the dictionary definition that murder is wrong; whether it be the murder of anyone, someone close to them, or themselves. Murder by this definition is fundamentally objectively and morally wrong.
Thats my basic understanding on the issue (just thought you might be interested in hearing it)