Now the firewall is locked in a vertical position took the airplane off the blocks and lowered the nose for easy access to the top.
Trimmed protruding foam.
Have become accustomed to the concept of securing the aft flange with the outer skin, and now consider there is no reason not to do the same with the forward flange. I just don't want to glass the forward flange, then later cut most of it off and tape it again. Spend some more time shaping the forward flange for taping now, along with the fillets.
Put more clear tape under the forward flange, and masking tape over the edge
Cleaned up, masked off the fuselage below the top skin, and stopped for the night.