My 98 is currently at ~150 000km's on the Odo (probably closer to 180k due to Speedohealer correction) and still on the original disc although it's getting close to needing to be changedThere's somewhat faded feel on the brakes, but my style of riding, or braking, is that I use a lot of rear brake (visual inspection on the rear pad screams change)....but what baffles me is that the pads look like there's enough life left.
4000 km's at least, prehaps even 5 or 6000 km...shouldn't they be almost finished, even if you ride slow and easy?
Also I took that digital meter to check the disc thickness, both are 4.72....which is odd again, I mean those are 20 year old discs, almost 100,000 kms
Apart from when I first got it with ~32k before I got it she has had EBC HH pads on the front and rear, probably 4 sets on the front, not too sure how many sets for the rear (2?) as I've tended to change the fronts when down about 2/3 and chucked the pads in the rear as the fronts wear so much faster
Saying that I changed from the original front wheel to a later model FI wheel with decent discs as I prefer the cleaner look of the grey rims and figured finding carbed discs would only get harder and harder to come by and will swap the rear to a later grey one when I next need a rear tyre so likely won't need new discs in a long time
As for the Scottoiler Stormy mine is set up with the outlet nozzle underneath to drip on the chain going around the sprocket and I do find a bit of fling especially inside the rear rim when riding as speed