A couple of days ago, there was someone on Badger&Blade with a similar problem of unequal sharpness along the edge. We ended up talking about the balance of honing strokes and what could be done do make up for neglected parts of the edge.
I'm going to do some answer recycling
:
First off, it is not more complicated than riding a bike. But to put in words how to exactly keep balance can make it sound very complicated. Not much I can do about that.
In my opinion, while honing a razor, there must be a gradual shift of attention along the edge during each stroke. (regardless the size of your hone and whether the razor has a smiling curve or not). During each stroke: you first hone the heel part, then the middle and finally the tip. If you pay attention to the wave of fluid in front of (and running up) the edge, this is not hard to accomplish. You just need a gradual shift of attention. This is often referred to as "roll", but for non-smiling razors it is more a shift of pressure than an actual roll. Just watch the fluid and your arm will do the motion automatically. After a few slow strokes, you can lock that motion into your muscle memory, and speed up the stroke. But never sacrifice precision for speed. Speed comes with practice. It happens that I meet people who struggle with their honing stroke simply because they started going too fast too soon. Once precision is sacrified for speed, it can never be won back. Not without slowing down first.
If you notice that a part of the edge needs more attention, it is easy to adjust your stroke to it. Let the wave of fluid guide you. If you want to focus a couple of strokes on the heel only, make the wave of fluid run up that part of the blade.
During what I call "halfstrokes", or while doing circles (It doesn't really matter, but the circles don't allow the same control as I explained above), you can put a finger on top of the part that needs extra attention. That finger just being there already makes a difference. If you need more, some pressure might help. Do NOT place the finger above the bevel, but keep it closer to the spine, where the blade is a bit stiffer and the pressure is better spread.
Sounds too complicated? At the end of it all, if you did a halfway decent dilution, all you need to do is rub your razor long enough over the Coticule with water only (refresh the water every 50 laps), while the razor makes correct contact (spine and edge both in contact, lifting the spine during as little as one stroke will set you back considerably). Eventually the razor will become perfectly sharp. If the contact wasn't good along the entire edge, it will only be sharp at about a third of the edge, but with what's explained above, you can fix that.
If you have any trust in the bevel, there is no need to start all over. .
Just work on the Coticule with water until it passes the HHT on a thick hair along the entire edge. (You need to dry the edge before you try the HHT).
At that point, 30 lighter than the weight of the blade laps might get you even further, but the razor will be good regardless.
If you really want to push the sharpness envelope or if the razor demands it, then at that point you can go with the wax-trick.
Kind regards,
Bart.