So first, if you are doing a comparison use the same stones otherwise it is not a comparison.

Second using a natural stone is more difficult than a synthetic stone, there is a large learning curve especially for Coticules.

Third, use magnification, so you can see if you are making progress. You need to see, if you are honing to the edge, ink the bevel. The TPT takes a while to calibrate, until then use your eyes. Your eyes and magnification will tell you a lot more that the TPT ever will, you cannot feel micro chipping with TPT.

You need a foolproof test, to ensure you have a fully set bevel, before you move on to higher grit stones.

Do use tape to protect the spine until you learn to hone. Read the first 4 threads in the honing forum, they are packed with good, solid honing tips.

As said there is not a formula for honing, you do what is needed. Kind of like driving, close your eyes, step on the gas count to 10 and turn right , count to 5 and turn left… probably not going to work out well.

It really is not that difficult, setting the bevel is key, after that it’s just polishing for comfort. Magnification and Pressure are also important, more of one less of the other.