Tim Capps wrote on Jun 16^th, 2010 at 5:42pm:

Just saying my airplanes fall out of the sky when I used REX, too.  They don't now that I stopped using it, so I wondered.

I found that REX hit my frame rates way too hard, but I don't ever recall having a problem with any of my Captain Sim planes autopilot. I use ASE too and, once again, I haven't had any problems with my CS planes autopilot (yet). I did at one stage use both REX and ASA together, but never with REX and ASE, no problems there either.

Mark