Are there any cold spots on the rad? Sounds like you've got good flow but the rad isn't up to the job - temp drop across the rad doesn't seem enough to me. Just because it's a spunky over-sized thing doesn't mean its any good. When my fans come on the temperature drops like a stone, usually a ~45 second burst is enough to go from 95 down to normal.
Do you have any cowling on the rad? Might be surprised at how much difference that makes.
Edit: missed the entire second page, my bad.
Do you have any cowling on the rad? Might be surprised at how much difference that makes.
Edit: missed the entire second page, my bad.