The numbers posted here are a wild exaggeration of the required training and trips that would be pulled. It will be not be near 10%. If you get peopled fired up with false data and then they get the real numbers pilots will go that's not so bad and vote for the TA. There is enough bad that sticking to the facts is a far better strategy.
A simple example posted over and over on here is that 10% of the trips will be withheld for OE. The real numbers will be posted in the road shows and it's going to be around 2 to maybe 3%. We only carry about 10% of a category Captains as check airman. In a two man category you would have to pull every single trip they bid from the pot to have 10% of the trips withheld for FO's. In a 3 man category withholding every single LCA trip would only be 5 %. Then you have to figure out how much IOE is actually done by each LCA. Remember they have to do regular line ckecks, route checks, special flights and they are given some trips off to just fly. If LOE's are done on half their trips that's 5% in a 2 man category and 2.5% in a 3 man. Then the company can only withhold 75% of those amounts.
The 330 category as a example can train 24 pilots a month. On average they need about 40 hours of OE. That is higher then domestic at around 25. Call it 1000 hours of OE per month. The company can withhold 750 hours. There are over 40,000 FO block hours per month.
In a domestic category if you had a category of 100 CA and 10 check airman the numbers are easy to estimate. 100 pilots would generate about 6000 block hours. If you withheld 10% or 600 block hours you could train 24 new pilots a month or 288 pilots a year. That's a lot of training for a category with 200 pilots total!