WC for challenger champions
WC for grand slams on challenger points
WC for defending champion (don't remember this being brought up but is a fantastic idea
WC for nationality (maybe only at 250 level as GS and Masters1000 are a bit too big for that)
I like 156 mph serve's idea of having a certain amount of requests per tournament level.
Anybody who would not make the main draw of a tournament should be eligible for WC
I think 2 WC should be given at each tournament with a 32/48 player draw
4 WC for 56/64 player draws
6 WC for 96/128 player draws (not sure if we even use 48/56/and 96.)
No player should be allowed to have 2 WC within the same month.
I think only 1 WC per tournament type per year (e.g. 1 250, 1 500, 1 1000, and 1 GS) unless they are defending champion of a tournament.
ALSO I think in fairness to the managers, we should at least consider allowing the manual picking of WC. Since this whole thing causes a bit more work for them, They should be able to see why each person who requested deserves a WC and pick based on that.
AND PLAYERS SHOULD NOT BE ABLE TO REQUEST WC UNLESS THEY HAVE COMMITTED BEFORE THE FIRST DEADLINE. People should not be using WC as a way to pick which tournament they play in.