Some of the shortest recoveries I had were when I was using the smallest three blade fixed head I have ever used, the replaceable blade model Sonic 100gr 7/8" wide made by American Broadhead Company located in Milan, MI at the time. I was having tuning issues with the Mathews and that little broadhead flew like the proverbial dart for me.
I killed two bucks with that little broadhead, both walked off at the shot with essentially no reaction, then dropped dead within 60 yards. It was as if they didn't know they had been hit, they just heard some sound, flinched, and after a few seconds casually walked away.
I only used them the one season and it was back to wider fixed blades or mechanicals, and also panicked death runs resulting into longer blood trails.
Chew on this for awhile, is bigger and/or wider always better when it comes to blood trails ?
Does the initial impact from a wider fixed blade or a wide cut mechanical result into longer blood trails because the deer panicked when it felt the broadheads impact ?
All things considered would a blood trail be easier to follow if the deer was walking, vs running ?
From my experiences and judged by the reaction I have seen is that an accurately placed, extremely sharp broadhead, (emphasis on both) in a smaller version might just lead to more recoveries and better blood trails, gut shots and and extremely poor hits excluded.
Proper waiting before taking up the trail is no doubt the most important decision one can make at that time, regardless of the size of the broadhead used, even mechanicals.
Don't push them and they won't go far if mortally/critically injured.