I'm not sure what a preferred method would be. These forums are for the benefit of all and if, in your position, you feel you have something of general benefit to offer, I see no reason why you should not create a situation by asking a pertinent question and adding your experience to the answers that your question draws.
If your solution is not exactly right you can bet your bottom dollar some kind person will add more.
Keep in mind that if the software in question is beta you most likely signed an NDA (definitely if the beta software is from Apple) which prohibits you from discussing the software outside of the approved channels provided by the manufacturer.
This means mentioning the software here is against the rules. And if the software in question is from Apple then in all likely hood your post would be removed.
Once the product is released then the best way to post your tip woull be as a non-question post.