Hei, Is anybody in the plumbing niche? if so, what avg email open rates look like? i have the best subject line " quick question" & also the best email copy but, my open rates are just around 20%😯!

Jo, I'm currently studying this cold email game like there is no tomorrow. I'll share my current split test, where I have six different headlines and six different pitches in each email. (Doing that before I go for my big lead list) Since my Open-Rate is almost always 90% or more I guess, i know what im doing there pretty well. My question is, does anyone have a constant hook/ankle pitch + call to action template that generates 5% or more in replies? I know most 'gurus' say that 1-3% is great for cold outreach, but I feel like there is so much more potential to it. Happy for all your ideas and numbers so maybe we can learn some things from each other.