Thanks David, I have the beta of Spark VDM now and it's working great! I have also sent off a seq in Logic Studio 9 showing off the issues with the Prophet V to tech support.
Part of the issues with the SEM were my fault, didn't have retrig set on the step seq. Trying to create a seq that will reliably show off the issue where having the SEM in a seq makes MIDI recording WAY behind but it's a pretty random issue. Going to be a hard one to track down.
BTW, the issues people have been running in to where there is a byte size mismatch when loading SEM, it looks like this is a key issue. Mine does this if I don't have my key plugged in. Also happens on the Wurlitzer V. Plug in my key and the plugin load just fine. Betting it's an issue in the popup that happens when you don't have your key plugged in... Just thought I would mention it.