Re: How do you read the WIND without tools???
The Kestrel can give you the wind speed and other weather related data that may impact your bullet path.
One other word of advice for free and worth every penny is, if at all possible, shoot in the conditions, or simulated as near as possible to the condition you plan to hunt in. Also do not skip a trip out to practice just because it is windy. It is a good time to learn.