I read ( on this forum ) that many people prefered right helical as it would have a tendancy to keep the broadhead tight on impact, as opposed to ( with Left hand ) have a tendancy to loosen.
That's the funniest, and most ridiculous, thing I've ever heard. I hope no one here believes that.
Really doesn't have anything to do with the style of tip (BH or field tip), or anything to do with broadhead penatration in an animal, but a left helical or left offset WILL tend to loosen your fieldpoints over time, and I would assume broadheads as well in the same type of target material as the fieldpoints are landing in.
Believe me, it is irratating to be constantly checking and tightening your field tips on the target range...[:@] Put some string wax on the threads and the tend to stay tightened up much better. OR, just stay with right offest or helical.