I do think it's a really cool song and I love your music.
Seems like I'm the lone dissenter here.

I love the solo vocal passages that sound very Stephen Stills.

I'm sure you've done what I'm about to suggest but I would A/B listen to CSNY (especially their first 2 albums were are classic great ones).
It's also possible that the production and guitar sound is a little too clean for the era.
Teach Your Children... Listen to "Look at them and SIGH"... http://youtu.be/M_hYdywoV_Q
If you feel that strongly that the screener is wrong here, maybe you should write to Taxi. I know you said you have another re-screen in the queue and therefore are hesitant.
Warmest,
