Seen it over and over mate.
Good jills are hard to find, when you get a good one, never let it go for anything.
Hobs seem to have the upper hand on shifting or killing the real stubborn rabbits. When i first started off ferreting 32 yrs ago (i'm only 36 now by the way) jills were the key to everything, no locaters and bolting was the norm.
I't still plays it's part in today's sort of ferreting, especially on the deep warrens, creep up, net up, back off and put in the jill.
If it can be dug easy, put in the hobs and just get on with it, maybee if it's tricky then go back to the old sch