For someone that has hovered between 10-14 prem over quite a few seasons, 11 last year plus cups - it's a bugger, lowering to 13+ is going to swallow up the kop, and lowering to 4+ I assume will lower chance altogether.
Never going to please everyone, for instance, any 4's & 13's will be pleased; but as everyone has said previously the 15 (guaranteed) - 10 (good chance) - 5 (chance before free-for-all), is a sensible and obvious solution.
I anticipate it will be a struggle to get 10-14 now, especially if we make any sort of push in the league - not to mention cost, if all 10-14 games are in main stand/cent.
Edit - 19's, also a shitter - I'm not sure if numerically possible, but should have an hr to pick where they want to sit in every game (assuming this wouldn't wipe out all member kop tickets.)