I completely agree with Reg.
Shuffling bikes around I found a cut to my B17 , on the nose about 50mm from the end. Not deep, 20mm long, points to 2 o'clock and just crosses the centre line of the saddle. Should I leave it or dress it a little with something (slightly) abrasive?
If that is what they say, I reckon you should dribble a bit of superglue into the cut. Not much, or it will make a hard spot, just a bit to reinforce the fibres
I will try that but as a last resort. If/when it starts growing the super glue will come out!
In my experience, with boots rather than a saddle, super glue is a bad idea. It seems to embrittle the leather and so make the situation worse.