Dowsing with straight traditional L-shaped rods is irrelevant, because I don't use them to point to anything, I use them to join and indicate frequencies, which are all dowsing anomalies!
Specific shapes and lengths have preferences In the dowsing reception. Just As a thicker handle allows better conductivity, a specific length and shape will enhance Dowsing reception ability..
My most sensitive rods have triangle ends, everything based on 3 inches, because it's a favored length and shape.. My triangle rods work better than any straight rod..
But they got better today! My dowsing rods collection added a new shape, Pentagram, 5 sides with 3 inch bends, my most sensitive rods to date, they work great!
My new Pentagram rods along with my Triangle rods...