Certainly you had some edges in there that were closer than others. Often times, the more you have edged before, the closer you can get on subsequent edges. But that's now always true. Lots of things factor into it. (she totally ignores your panting)
But we as an educational institution are only interested in the output of the student. We'll help you with tips so you'll get good results, but ultimatly you have to be willing to work hard and push for close edges. And that's where our edging grades come in.
Depending on how close you are with an edge, that edge get's a grade. Get your pen and paper, you will want to write this down and learn it by hard. If you forget this stuff, even edging like a champ won't save you. I hate forgetful and unconcentrated students.
Forget about grade F and E edges. Those don't count. If you don't have that familiar edging sensation where your PC muscle contracts and you jump a little bit, it doesn't count as an edge, easy as that.
So a grade D edge is just that. PC muscle contracts, you get the edging sensation. Nothing spectacular. If we just say "edge", this is what we mean.
Grade C is a really sharp edge. You fine tuned the edge by testing the limit, you might feel some tingling. This usually requires a few seconds on the edge and is a bit more delicate. I really like these edges.
Grade B is probably the highest grade you will be able to achieve, if even that. This is where cum actually flows up your shaft. And then you stop, letting it flow back again. These require some practice and in most cases extended edge holding beforehand and those are exhausting after some time.
Grade A is a 5 minute hold in Grade B, usually achieved through tapping and risky ballooning. These are dangerous but this is what we strive for at the end of the Bachelor's course.
Let's get the tabata ready for another round right now. Go for 8 grade D edges and 2 grade C and don't fuck up.
You decide when to do the 2 closer edges, but I want you to find the difference between the two.
Grade C edges are quite a bit more exhausting. When you reach the edge, slow down and eek out a bit more stimulation for few seconds. Fine tune the edge. Then, when you are sure you can't go closer without coming, let go.