SOooooo...
I've come to this conclusion. The only REMO brand heads in production today that are exactly as they would have been in the 1970s are as follows:
A) REMO CS Batter, Clear with Black Dot
B) REMO Vintage Emperors (2 7.5 plies, just as in the '70s. And by the way, are the vintage Ambassadors a take on an actual '70s Ambassador??)
That's it...and possibly...
C) REMO Smooth white.
The reason I say possibly is because while I've seen bass drum heads from the '70s that were definitely smooth white, I can't say if they were 2 7.5 plies like they're made today.
I realize this is a lot to take in, but I just really want to know my options. The only opinions I seek regarding heads are those having to do with the exact same heads remo produced in the '70s. '60s and '50s friendly too.
EDIT PLEASE MOVE TO MAINTENANCE FORUM! THANKS SO MUCH!!!!!!