Redrider, congrates on the weight loss!! With regards to your question, here's been my observations (about the same size as yourself, now. I also had a '99 CR, now '00).
Proper spring rate made the biggest difference, particularly in rear. The revalve was less noticable for me (MX mostly), but was still significant.
My recommendation would be to do the springs, as recommended. Several here can give you a good recommendation for rate, or you can check out Racetech's website and run their rate calculator program for yourself. Then spend some time with clickers, then, if you still can't get satifaction, go for the revalve. Note, for trail ridingm the revalve will likely make a much more significant difference than it did for me, as these bikes are usually way over damped and sprung for trails.