Yes, you're correct.  I thought of that a little after submitting it.  I want to say, though I wouldn't swear to it, there was another box I could not locate quickly, and I thought it indicated something to the effect of filing that form electronically.  The repr. indicted this was to provide feedback, and I thought that was for the firm, but instead, I see it's a community.  

In the meantime, I did see past posts for last 3/4/5/ years on this and they mail them in, which I've done in years past, and did in this situation, just to be safe.  My return was accepted with the PA 1000 attached, but I don't want to take a chance.

And, thank you for your comment.  Have a great rest of your tax season.