Just my opinion for what it's worth, but maybe concentrate on recall for a while rather than hunting......I always finished the session on the lure, wether a kill or not, I usually transferred from a kill to the lure, then pick up....seems a lot of hassle, but it pays dividends....
I varied recall amounts a lot, sometime being too generous, if this cuts short a session, so be it, it helps in the long run...
I used the lure as sparingly as possible on the recall, but when I did, it always worked.
Try going out, splitting the ration in four, recall from trees to first 3 bits & then last b