The Captain Sim C-130 is my most favorite add-on aircraft.
The FSX version has a few minor qlitches that I'm sure CS will fix.

Frames Per Second (FPS) is a serious problem.  I live in the Dallas/
Ft Worth, Texas area.  Take off from any airport and FPS are in the
single digits, very herky jerky and completely unuseable.  But once
I leave the DFW area FPS jump up to 25-50 (set at unlimited).  At
high altitude (27,000ft) over the country FPS are anywhere from
40-80, smooth as silk.

Fly over DFW at 27000ft FPS drop to 15-25.  Fly over DFW at 5000ft
and FPS drop back into the single digits and becomes a slide show.

Leave and fly back out into the country and FPS jump back up to
higher FPS.

Same for Seattle, San Francisco, Los Angeles, Washington DC. and
any other large congested area with lots of autogen and dense scenery.

The C-130X is a great airplane as long as you stay away from large dense
autogen areas such as big cities and airports.

I'm still glad I bought it and will stick with it until Captain Sim gets all the bugs
worked out.  Hopefully soon?

My autogen is set to very dense and scenery complexity is set to extremely
dense.  Could that be my problem?

My computer specs: (It's not a weak system)
Gateway FX510
Intel Quad Core QX6700
Nvidia GeForce 8800GTX
4 Gb Ram
Windows XP  (FSX SP2)