my suggestion is to forget everything you once knew about custom belts and beyond. Forget TC as a whole giving someone who knows how to get infinite pools of tc MORE TC for free is just going to bankrupt the game i say once you reach custom that the game changes in ways like:

-New Never before seen DLC that comes once every time the game updates such as a custom member only voted 3D item (a 3D item that has been voted on by the party of existing Custom and higher Members) you have to be or have been and are higher than a custom belt to obtain this DLC when the a update comes. or maybe it should come once a year or once every 6 months as a message that is sent out to all custom belts.

-The ability to have Custom Move sets (in a menu option you can make a 1 frame move/ moves that are hotkeyed to a letter, number, symbol, or a combination of them) this reward lowers the chance of things like accidental spacing or missclicks). The number of Move Sets you can own increases on every thousand games. NOTE: this should be something that -so it does not interfere with the normal controls- is activated by pressing and holding a certain key like the Control key (ex: Ctrl+A+B= kronos kick) then pressing it in that order again will undo the command and the joints will return to their most recent positions.

-Access to a Custom and higher only Forum board were the link to is located in every clan forum and on the toribash Forum front page along with the toribash website.

-One free month of ToriPrime and VIP only granted upon reaching the exact number of matches needed for custom belt. It should come as a yes or no option that is sent in the message on the forum telling you that you reached custom. The message should be able to be accepted at any time and if denied is not granted again. The message should have both a "do you want to deny the free month of ToriPrime and VIP" option and upon clicking it a "are your sure you want to deny the free month of ToriPrime and VIP". It should also have a password check to make sure that you are who you say you are when you select Yes or No to the TP or VIP. (this is to prevent people from "accidently" leaving their computer on and someone sabotaging their choice of TP and VIP and needing a GM to obtain it for them) This message is a one time only deal making it hard for someone to want to try to alt their way to getting free TP or VIP and even if they do it will just be handing more money to the game* but i doubt that anyone will sit there and do another 20k+ games the hard way.
*QI booster or by buying Qi

Not all these ideas should be inherited at once, if at all but i believe that something that is new and improved will keep long time members and bring back others. Keep watch on this Post more and or Better ideas may be coming soon. If you have something you would like to point out or add to the list of ideas Quote this message. Ive tried really hard to make the Idea of Free TP and VIP and the Custom Move Hotkey fool proof so it can not be tampered with.