"As part of a one-year test basis Letter of Agreement, the Targeted Line Value (TLV) will increase by 1 hour to 75-81." - not in actual text of TA - it would be in a side LOA. Source: Contrails 19.

1 hr x 9,000 line holders / 77 hrs = ~120 pilots.

Regarding sick leave abuse, I believe the concessions would have caused intimidation for marginally sick pilots to come to work. Personally, I rarely get sick and want to keep it that way. You're often most contagious at the first onset of symptoms, and I don't want someone pushing the line and snarfing in the cockpit while or before I'm there so that I can get sick right when I hit my off days. But those changes would push some to do that, and it probably would help staffing somewhat.