A good clearance should, within a week or so, look clean and then the returning hairs will start to be noticeable after a few weeks. (Yes, actually, the hairs returning from resting stage will be coming in right away ... but the client will not notice them.)
The client will not notice the returning (untreated) hairs, because they will come-in with very light and very thin tips ... they will NOT look like these hairs "with blunt ends."
100% agreement. After a clearance in which all hairs have been properly treated, the regrowth should look similar to this:
One year after a test patch in order to determine the surface cleared in one hour.
In the legs of an adult individual hair development is complete, therefore there is no risk of developing new hairs. The hairs that you can see in this patch are untreated hairs because they were absent during this first time, that is, they had fallen (exogen phase).