Hi Silverhead,
I tried what you said and what you said happened. So the problem: "headphone sound is different from recorded sound" has been solved.
And here we find that the headphone sound is no longer the one that I want! So I discovered something wonderful about this situation. If I keep the monitoring on the reason audio track turned on, I hear TWO guitars being played simultaneously. There is the Reason Output sound and the PODFarm Output sound. It turns out that PODFarm amp setup affects the Reason Output sound, but that the Reason FX do not affect the PODFarm Output sound. So if Reason monitoring is kept on, the sound I hear from my headphones is:
A- PODFarm Output Sound
+
B- Reason Output Sound Amplified by PODFarm units and manipulated by Reason FX
Sound A is the REAL guitar sound. It is the guitar sound that guides me to play what I want to play. Sound B is TOO FAR OUT into the distance and cant be used as an adequate guide while playing, but when it is in the background while I am playing, the compounded affect is wonderful.
This compounded affect is the sound I want recorded, only that can't be recorded, because if Reason Monitoring is on, the PODFarm output sound will not be recorded.
So this is a new idea in recording using Reason:
First, record an Audio Track with Reason Monitoring switched on. This way you'll still be able to hear the Amplified PODFarm guitar output, used as a playing guide, but the recorded sound will only be the reason output.
Then create another audio track and switch Reason monitoring off, and play the exact same notes. In this case you will only hear the PODFarm Output through your headphones and that will be what is recorded.
Now you have 2 audio tracks, when played back, that give you the compounded sound you hear in your headphones when you are playing with outputs from both PODFarm and Reason 7!