Unfortunately I wasted a lot of time and energy on cheeseless tunnels.
You wouldn't know they were cheeseless unless you had tried. I wonder if some tunnels are only cheeseless at some times of a R, too. I didn't feel love for my W until this year, so many of my tunnels would've been cheeseless or not possible to enter. Now, it is a different landscape.
Trying can't be a waste. It might not help, but it is what separates us from those who just accept, run, hide, or demand an immediate D.