I appreciate all the replies, My range has gotten a whole sight better, still not where it needs to be, but better. My endurance is certainly not great by any stretch, I am seeing marginal improvement. I did take the suggestion on taking the day off, or lightening the load considerably. I usually save that for a Sunday.
Markie, I am pretty much doing as you suggested, Lot of lip slurs, long tones and lip flexibilities, with huge amounts of rest inbetween sessions. My sound and intonation is really nice, just wish the rest would catch up, i haven't always been the most patient person. Thanks again guys.