I use Ultimate Traffic with my RC. Does the two programs work together in any way?I was wondering what would be the most realistic percentage I should set my traffic slider to in my settings.I witnessed this to (see attachment). They landed way ahead of the runway and at the same time, and through another plane that was set to take off.

I usually turn traffic density down to ZERO once established on final, sooner if the TCAS starts sounding off. I used FSUIPC to assign this function to a hot-key, so it only takes a few seconds to toggle the density setting. Until the technology advances to the point where AI ATC like RC can achieve proper separation of traffic by managing the flow of traffic into the terminal area, I wouldn't consider this a bit unrealistic. Mark Kuebeler

If you look on the AVSIM FS forum thread for a topic of AI clustering, you will see some interesting comments.I use UT2 at around 85%. I also use a TCAS gauge (one is included with UT2) that helps keep your seperation in the pattern by modifying your airspeed. It is tricky merging in a "string od pearls" situation.