RE: ground blinds
Using any type of portable ground blind can be effective the same day when prep correctly , the trick is to brush it in really good.
With that saidyou should find a good spot wheather it be along a main travel route between bedding and feeding areas or in along a rub line or scrapes.
Do your legwork / scouting for these signs and set your blind within 30 to 40 yards , make sure you have plenty of shooting lanes.
Use the natural brush to break up the outline of your blind by placing the blind within the brush that way you'll catch them by surprize when they walk by.