Actually, we would build our own blocks. Make 40, 50, 85 hour blocks. Whatever the hell you want. You would not have to put trips on the ETB to drop time. All that time would be put into blocks, actually creating more lines for f/a's.
One of the main problems is the fact that we are one of the only airlines that changes our schedule daily, with less that 24 hours in advance. That should be changed. Again, it comes down to blockholders having too much leeway, at the expense of the rsv's.
Would you then restrict those to only bid their option? That might restrict availability of lines even further.
and, doesn't time dropped from different options go to secondary blocks now?
and, who cares when the trip is staffed, as long as there are bodies to staff them. You could staff the trips a year early and still need reserves.
Work through the problem. It is a lot of work, but, somehow, take the time. Your most certain access to more lines is to cap time. The other "solutions" I've seen here are mental masturbation. Prove me wrong.