I recieved some calls from growers beginning to look at wheat stands. Be sure to consider the uptake of N. N Uptake Discussion in wheat with N Uptake Chart For those that are getting 100 or more tillers already at this time perhaps holdiing off on N topdress is not a bad idea and time it to when hte wheat begins to take most of its N up at about GS4-5. There was some producers talking about applying N at flag leaf and that is possible but by the time the N reacts and becomes available it might not be worth the application and also incurrs some damage from running through wheat at that time.
Here is a link to a video that might assist in your processing stands for management. Let me know what you are seeing as the season progresses.
Wheat Stand Assessment