John, Boanerges is correct that dispensationalism a) is incompatible with the doctrines of grace (b) compromises God's aseity (self-existence), and (c) compromises God's sovereignty."
But I will say people like John MacArthur and Steve Camp are not dispensationalists in the areas where it is incompatible with (a) (b) &(c). This is why I called them dispi-lites (a term borrowed from Pilgrim)in my other post.
I will have to let Boanerges or someone else answer your questions more fully, because I have not figured out how I can answer your questions without taking more time than I have at the moment.

Tom