For a 'bat' you don't need to grind it, just use your hands. It's personal choice though, some like to grind everything so they get more surface area. Personally, i would only grind buds for a joint or blunt. If you're going to do this, invest in a grinder with a keif catcher rather then scissors. To be honest though, don't even worry about those issues, just put on some of your fav tunes, lay on your bed, blaze a fat one and relax.