[RTTY] Self spotting question

[Gary AL9A]

I always run FSK so when I generate a spot for someone I'm sure the 
frequency I'm putting out is correct.  Unfortunately there are many RTTY 
spots generated that have the wrong frequency .  I suspect these are being 
generated by folks running AFSK who forget to adjust the actual frequency to 
compensate for their being on LSB or USB.  It's discouraging to be calling 
away in a contest and finally see someone spot me, but then give the wrong 
frequency!

So my question is this.  I know self spotting is a no-no, but if someone 
else spots you and includes the wrong frequency would it be frowned upon to 
generate a correction spot yourself?  Perhaps the Remarks section of the 
spot would contain something like, "Correct freq".  Any thoughts?

73,
Gary AL9A