What nobody talks about is that boring subject lines work because they don't scream "this is a sales pitch." The template itself prob matters less than people think, it's the packaging that gets you past the spam filter in someone's head. Strip the hype, keep it plain, and you're basically tricking them into reading it like a normal email.

Why not wrap the flat in foil when it hits the stall instead of messing with vents?

Wait, he told you to stretch until the backing creaks? That sounds like a recipe for torn carpet and a lot of regret. I have never heard anyone say that was a good idea, not once in all my years of messing with this stuff. Creaking means the backing is pulling apart, not that it is tight enough. I would not trust that old timer's advice at all, and honestly your split approach sounds way smarter. Keep the steps gentle and you will save yourself a headache down the road.