Yes, I take the audience as advertised in James 1:1. Tribulation doctrine for the nation of Israel...patience, perseverance, working your way through without spot, sign gifts return, rich condemned, etc...
Yeah, as a fellow dispensationalist, I think the key to understanding James chapter 2 is found in Acts 21
17 And when we were come to Jerusalem, the brethren received us gladly.
18 And the day following
Paul went in with us unto James; and all the elders were present.
19 And when he had saluted them, he declared particularly what things God had wrought among the Gentiles by his ministry.
20 And when they heard it, they glorified the Lord, and said unto him,
Thou seest, brother, how many thousands of Jews there are which believe; and they are all zealous of the law:
21 And they are informed of thee, that thou teachest all the Jews which are among the Gentiles to forsake Moses, saying that they ought not to circumcise their children, neither to walk after the customs.
22 What is it therefore? the multitude must needs come together: for they will hear that thou art come.
23 Do therefore this that we say to thee: We have four men which have a vow on them;
24 Them take, and purify thyself with them, and be at charges with them, that they may shave their heads:
and all may know that those things, whereof they were informed concerning thee, are nothing; but that thou thyself also walkest orderly, and keepest the law.
25 As touching the Gentiles which believe, we have written and concluded that they observe no such thing, save only that they keep themselves from things offered to idols, and from blood, and from strangled, and from fornication.
James insisted that the Jews have to follow the Law, even after the Council in Acts 15, but he is perfectly fine in Gentiles not being under the Law.
I think he will be amused to know that, after all these years, the Gentile church is trying to use his letter to the Jews, which was written even before the events in Acts 15, as church doctrine.