I have received training in University on Pro/E, but was able to learn Inventor quite easily at home. I find the two have pretty much the same capabilities. Inventor may have the advantage simply because it is part of the large family of Autodesk.
Just my .02
I agree with Whittey, I`m big into 4wheeling, and low rpm power is very usefull. Climbing steep hills on idle is what it`s all about, so somtimes the rpms dip a bit low and the engine has to pull itself out of the basement. I guess flywheel mass is also an important factor.
I was wondering if lugging an engine at very low rpm (500rpm for a 4.0L 6 cyl) has an adverse affect on longevity, fuel consumption, etc. I often do this simply because the engine can pull quite strongly from those speeds. Any thoughts would be greatly appreciated.