Well, the whole purpose of fair chase is to be able to enjoy a large amount of pursuit while having a small effect on the wildlife population. So, a lower success rate is kind of the purpose of the more challenging methods.
I seem to be going above and beyond in the "preserving wildlife" portion of the fair chase model.
Having said that, I believe that time and place contribute 60% to hunting success. Some of us have more time avaiable to go hunting, either locally or abroad. If you have less time, your odds go way down. Also, if the patch of ground that you have available is sparcely populated, you can hunt hard and hunt well and still come up empty.
I think that the type of archery tackle you use is way down the list of success factors.