Dynamic Ratio Load Balancing. SNMP or WMI

I've put lots of lines into the water about this issue and got some general answers. Support and our sales engineer basically said its up to you and had no specific experience with issues with either SNMP or WMI. I took another look at the configuration document and found that I missed a '\' at the end of the application physical path for scripts in IIS, as well as the pool identity was not set to networkservice. These combination appear to have made the application pool unstable causing it to crash. It appeared as though WMI was failing. After correcting them, it has been running solid. I'll be going with WMI for the monitor. If something changes I'll post it.