I have ridden with ME 800s, and I loved those tires. When I bought my Dyna it came with Mich Scorcher Tires. I now have 8000 miles, and the rear is a little worn, but the front is still good. I put on that many miles since March 1, 2010. So about 1000 miles per month.
I have been in five down poors, and I thought the tracking on the tires were very good. This was on the interstate.
In town I could get them to spin easy, but we hadn't had rain in a month, and the oil was built up on the road. So that is to be expected.
When it comes time to change tires for new ones. I am now torn between my trusted Metzler ME 800s, and the new found trust of the Michelin Scorcher Tires. I think I am going to go with the Michelin Scorcher Tires. They have held up well, and I did not have any issues with them on the Dyna this year.