I was able to get a semi-decent pic of what the strings look like in the 99S after about 90 minutes of play. The photo below is with one of the crosses pulled out of normal position (as the crosses more or less "lock" in place once the mains are notched to this extent).
This is with a full bed of Snakebite 17 at 64 lb.
The notching is pretty bad IMO.
This seems about the same level of notching I saw with the Lux 4g 16 at 59 lb (but I dont have a pic to compare), but at least this time the cost to have the strings notch was only about 4 bucks and not 17