You wouldn't be wrong, Dave- It's what works for your setup/release etc. In my personal experience I can tune a very wide range of head wts, when paired with a plunger's centershot adjustment and spring tension. I cannot do this as well off the shelf.
With the lighter wt heads, I just adjust the plunger away from the arrow more, and adjust toward the arrow for heavier heads. Then tweak with spring tension and/ or brace ht. if needed.
Many, many variable come into play, affecting differences b/t each setup/shooter. It's just easier for me with a plunger, although I don't use one now. I like a shelf
Others, please help T.W out here with your recommendations.